How To Dose H202 In An Aquarium - Complete Guide

[@MarksShrimpTanks]

Did you enjoyed today's video? if you did please do consider leaving a like, doing so helps creators out like myself a ton. Also if you are new please do subscribe and hit that bell icon to never miss another video, Happy Shrimp Keeping.

[@erich1463]

Hey Mark great info! Thanks! Just wondering how often do you recommend to put H2O2 in a tank?

[@Flyingdutchy33]

Excellent! I just performed the treatment as per specifications to my 150L and 200L fish tanks and it appears to have some magical effects. I've noticed increased pearling from the plants afterwards and all fish are more active. The perscribed dosage was a little on the low side, as not a lot was happening. I then hit the tank after about 30-45 minutes with a syringe with another half dose in a more focused manner and thats when the real magic started. tons of bubbles from the stuff reacting! I think I'm going to make this part of my waterchange routine. Siphon water out, treat the lower volume of water, let it sit and refill. Possibly hit it with a small shot of fresh bacteria, too!

[@BALONGITOON]

Everyday/everyotherday/everyweek dosing?

[@paulrichards8473]

Hey Mark, great video. I have a lot of algae (some BBA) in my tank and I'll be using this method today. One important point of note for your US viewers; The overlay showing the dosage on screen is incorrect. One US gallon is 3.875 litres and not 4.5 litres as quoted. The UK Gallon is 4.54 Litres.

[@maxverafrank7061]

Wow... I'm.... I'm speechless... This actually works.. Been battling hair algae for months and this method got rid of it in 2 days 😲 . Thank you, Mark!

[@JUNGLY108]

Hi guys. I tried this yesterday in my 10 litre tank ( I dosed 2 ml of 3% h2o2) and I woke up this morning and it had completely removed the green hair algea. I'm absolutely amazed about this. Thank you so much, I can't tell you how disheartening it is to have a tank slowly taken over by green hair algae, especially when you're doing everything to prevent it in the first place. Again thank you Mark for sharing this, very grateful.

[@MarksShrimpTanks]

Thats awesome to hear Shallen !!

[@br0ken86]

One of my berried shrimp had rust disease and was visibly getting worse and more lethargic. Following your instructions I dosed h202 2 days in a row and she is noticeably better! Your video may very well have saved her and her shrimplets! Thanks Mark!!!

[@MarksShrimpTanks]

Good to hear ❤

[@xGozzax]

Immediately went out and bought a bottle of 3% for €1. This is huge, Mark! Thanks for the in-depth video, it is much appreciated. Currently watching for the 3rd time.

[@MarksShrimpTanks]

Good on ya, there is no risk if you follow the instruction , just double and triple check everything.

[@Flyingdutchy33]

@@MarksShrimpTanks Is your dosing instruction also based on a bottle with a 3% solution Mark?

[@MarksShrimpTanks]

yes just 3%

[@bubblerings]

I like your logic about the dying hornwort.. Feeding the hair algae. It mostly grows in my floating hornwort. I have been changing out the old hornwort with algae free new growth from another tank.. My hair algae is decreasing. Removing plants before they fade is helping. No green hair down deeper in my tank. Thx! ✨🐟

[@StedMuffin]

This is brilliant, I've been spot dosing my tank for a while with H202 to treat hair algae to no avail. I can't wait to see the results of this on my own tank.

[@aqualungs77]

Awesome!! Did this on all 6 of my tanks. My fish and shrimp seem more energetic. Awesome hack!

[@MarksShrimpTanks]

awesome to hear, right now I am looking into UV stuff to see if it will do the same thing 👍

[@JamesDeGaris]

Best video on this topic I've seen! I can't wait to try it out against my black beard algae. My shrimp have also been hiding away for a while no, so it will be interesting to see what happens.

[@hellothere312]

thank you so much i did this step by step and it was not what i expected!!! it was such a huge benefit to my shrimp they started to come up front and eat agin together and i seen shrimp i havent seen in a while. thanks so much.i owe you one

[@francisbaasker]

Big Big thanks for this video and most of all for having such a big heart, for the dedication in sharing. I'm surprised to see how my sick shrimps are doing now. Thanks again Mark Shrimp tank.

[@zenoeval]

I tried this in my tank a few months ago when Mark helped me with the info. It worked great for me. Took care of almost all of the hair algae and perked up my shrimp. Added in some more plants and some bacter ae to help things out. Everything is still looking great. Thanks for the advice Mark!

[@MarksShrimpTanks]

Thank you for the feedback will!!

[@nadst3r]

This is wonderful Mark, thank you. I had a vorticella outbreak from a plant i didn't clean well enough. Tried Indian Almond Leaves, spot dosed some Flourish Excel, nothing happened (vorticella probably grew even more). Watched this video and even under dosed my tank (spot dosed). No more vorticella! No shrimp deaths, no puffer deaths, no snail deaths! Absolutely amazing

[@Jlui83]

How often did you have to dose?

[@nadst3r]

@@Jlui83 just the one treatment

[@thanoshalo7102]

Mark I have started my treatment..but I used 5ml on my 10g cause im being safe for now so im treating it as a 5g..my shrimp has rust diseases or i believe it has. One sadly died with its body being black..one death is to much for me to bear..I MUST SAVE my colony..Im not a breeder these shrimps are my pets and Im learning new stuff about them. I hope this treatment save these beautiful creatures from this evil bacteria infection...ill repeat 3 days in a row...my dosage is 1ml per 1US gallon to be safe that's for my peace of mind. This way i leave room for no error in dosage if anything i under dose I thank you for making this video.

[@bullpaxton2001]

I have a 22 gal tank with leopard danios and Amano shrimp and I have been using this method to treat for stag horn algae and it’s been working excellently! My tank is super clear and my plants are bright and happy.

[@MarksShrimpTanks]

Bull that is really good to hear, thank you for the feedback.

[@coopula3387]

A great video and thanks to the person that corrected him on how much to use. 1quart 32 ounces 1 liter 33.8 ounces

[@kalibre2171]

This is Portuguese' product from my country .....I never tink this can be used in shrimp tanks ........tank you for show everytime new things 😉

[@MarksShrimpTanks]

Thank you very much!!

[@autumnallalong]

Thanks for this advice. I started doing this to my tank. All of the shrimp have done well and my one green fungi afflicted shrimp seems to be doing much better (I can’t find any of the fungus on him more). I think after a few treatments, they will all be in great shape.

[@Jlui83]

How often did you dose the tank?

[@douggiles7647]

I can also say that peroxide treatment along with salt dips seems to be working for my treatment of Cladogonium Ogishimae (green fungus) and I was seeing no changes with just salt dips so pretty sure the peroxide is what is helping. Also, I use the metric system myself but a US gallon is under 4 liters, 3.78 or so, I believe.

[@MarksShrimpTanks]

Thank you for that information, Ive never had it or green fungus so it was always going to be very difficult for me to test stuff, thanks for sharing:)

[@m2t8r92]

1 US gallon = 3.8l 1 Imperial gallon = 4.5l Can’t wait to try this out though!

[@bubblerings]

Hope the Americans read this one! 👀😁🍀 Correct here for US.

[@NotYourAverageFishKeeper]

Best ending ever. Thank you so much mark! You have helped me out tremendously over and over again. Wish I could like this video 1,000x, Keep up the great work.

[@teyshrimps785]

Just did read something about H2O2 for the first time on a forum, didn't knew what it was. Thanks to your video i do know it now! 👍

[@jmontee65198]

Thank you for posting this Mark. I had a couple of tiger shrimp deaths about a week before this post. I treated with this procedure and both fish and shrimp "look" better and are acting more robust. The tank also looks more clear and plants look healthier at 5 days after treatment.

[@MarksShrimpTanks]

yeah so it really does work, people are very skeptical but I think they have to try if for themselves to see the difference

[@zgoalscorer10]

@@MarksShrimpTanks people are saying 1ml per 5 gallons some say 1ml per 10 gallons and you saying 1.5ml per gallon WOW huge difference. You do this everyday?

[@AussieAquatic]

Yes Mark, this is Fantastic stuff for aquarium use. And YES, Handle carefully!!!

[@en7jos]

Hi Mark. Great video, thanks for sharing. Couple of questions if I may please: - Why shut off the filter and why for 1 hour? Does the H2O2 harm the bio-filter and is it then gone from the water / safe after 1 hour? - Have you any experience with higher doses and what a safe maximum limit (for neo's) might be? - How often do you treat your tanks with H2O2? Many thanks, James :)

[@shrimptopia9201]

This video is awesome Mark! Hope all is well. I did a little research on Hydrogen peroxide and found out that it is light sensitive and will break down more quickly when the light are on. I recommend shutting the tank lights off as well during the hour of treatment, not sure if it makes a difference but if the theory is correct its worth a try, plus it may save you from having to do multiple treatments to get the desired effect.

[@MarksShrimpTanks]

Good idea and thank you for that information :)

[@rennanakio1375]

Tried this solution in my shrimp tank against vorticella and it worked well. Vorticella gone and neocaridinas and ghost shrimps and nerite snail still alive.

[@DoobityDoob]

I'm so glad I found your channel, thank you for sharing your experience and knowledge!

[@MarksShrimpTanks]

You are so welcome!

[@JL-mh1zg]

Hey Marks, 1 gallon is 3.78 L. Is the 1.5 ml for 4.5 L or 1G? Want to make sure I don’t kill skirmish lol

[@amberwagner556]

Worked excellently in my shrimp tanks! Thank you!

[@MarksShrimpTanks]

Great to hear!

[@htgbookworm]

I've used this method for hair algae before. Hopefully it works again for green spot and green dust algae! Thanks for all the info.

[@iCkEdMeL]

Hi thanks for the video. I found one shrimp with green stuff under. I separated that one. I do have 2 pregnant shrimp, is this peroxide safe for pregnant shrimp in the tank ?

[@MarksShrimpTanks]

yes, let me know if it works for the green fungus as Ive never had it and dont know it it works for it specificly.

[@spinningpeanut]

How did it work? I have green growth on one shrimp too and I need to help her.

[@chewkenghong]

tired doing this over the weekend. and even took out a drift wood, rock, deco etc to spray with H2O2. the beard algae on rock, deco turned purple within hours after rinse and putting back to tank. but the drift wood was a mixed. there were water plants glued to the wood, most of the beaer algae on the plants turned purple, but the algae that was on the wood itself didnt.

[@santamonicahelpassistant418]

17:25 I like this tank. What's the scape theme here?

[@DoobityDoob]

My god you were so right, my shrimps were not very active, two of the 11 almost lost their colours, and none came out for the blanched vegetables so I suspected some sort of bacteria problem, I followed your h2o2 instructions. There was a huge immediate difference. They are a lot more active now, it's like they got a breath of fresh air. I will check on the two losing colours when they pop out of hiding and I will try to give them some veggies hopefully they eat now

[@MarksShrimpTanks]

I have a feeling you might be feeding them to much, cut back on the food and see how you get on.

[@DoobityDoob]

@@MarksShrimpTanks I've had them for more than 3 weeks now, I put 1 small slice of cucumber for 4 hours once, isn't it like a weekly or biweekly kinda treat?

[@joewilliams4524]

Hey Mark. Great video as always. I used to use h2o2 in my fish tanks for years when treating algae or even bacterial infections. (In larger quantities than you use for shrimp so I assume shrimp are more sensitive to it than fish as my fish never were bothered by it) I now use in all my shrimp tanks once you confirmed safe dosage for shrimp safety. Thanks a lot for your videos. Also I believe it kills a large percentage of micro fauna (limpets, copepods, midge fly larvae) I had midge fly larvae in one tank and while not harmful it is very annoying. Small worm like lines stuck to glass and filter and small flys at the surface sometimes. It killed the midge fly completely.

[@joewilliams4524]

Also 4.5 litres is approximately 1.18 US gallon according to my conversions.

[@spieleheinie5156]

Do you use stabilized H202 or food grade ?

[@Jacksmatrixxx67]

Thank you for the information. Used it in my shrimp and fish tank wow what a difference

[@MarksShrimpTanks]

Its amazing the difference right ? I can see why people are skeptical but this really does work :)

[@notflanders4967]

fish do ok?

[@manwiththeg36]

great video i dont have shrimps yet as i am learning as much as i can and i find you have so much to offer thanks

[@mapiasal]

amazing tool. I use it weekly in my 10 tanks.

[@Neocaridina]

Brilliant! This never crossed my mind! I'll try it out when I can.

[@melaniemacpherson7464]

I put hydrogen peroxide dose you recommended in one of my nano tanks (that also had a little bit of hydra in it) last week and this week, there is no visible hydra anymore! That's another bonus! :) Thanks Mark.

[@MarksShrimpTanks]

awesome !!!

[@Firestorm777666]

Thank you for the information. I have a 55 gallon with a sump for shrimp. Some string algae has been a pain in my a$$. Might give this a go if the Amano shrimp I picked up dont hold up their end of the deal.

[@MarksShrimpTanks]

If you need help just send me an email 👍

[@m.y.i.shrimp3574]

Works great also for tanks that are already doing good. Now they are doing even better. Great shrimp hack. Thanks for shareing

[@MarksShrimpTanks]

Hello sir can you confirm for me your last name ? I got your email this morning.

[@m.y.i.shrimp3574]

@@MarksShrimpTanks yes my last name is Idrissi. I send the email during the stream

[@adamdrinan9491]

Mark you've done the dose "into the tank method", the "H202 with a diffuser method" and also the "auto doser" - out of the three which is the best/safest and why?

[@alfredslifes249]

Glad i just see this videos, gonna try out in my planted tank, which has lots of fuzzy / hair algae. One question is after 1 hours. Do i have to do water change ?

[@rochellehardie]

I have used this treatment with my fish tanks. Works great to rid the tank of algae. I didn’t have shrimp at the time.

[@MarksShrimpTanks]

Its amazing !!! thank you for the feed back Rochelle

[@notflanders4967]

fish do ok?

[@carbonrili2874]

Awesome stuff Mark. Thank you Sir for sharing a great video.

[@chrisjowett8182]

I have just tried this method was nervous but my RCS never came out or even fed on the foods given. They would hide and not move too much. So thought I would try this and I cannot believe it, I can see shrimp swimming about and coming to front of tank, it’s completely changed everything, even my Otto cats are loving it. Thanks mark

[@MarksShrimpTanks]

Chris its literally like a magic cure hahahahaha I love it, If I ever do a top 3 or top5 must haves in the shrimp room H202 is at the top of the list.

[@chrisjowett8182]

Marks Shrimp Tanks quality find mark. I am new to shrimp and your channel inspired me to give it a go, recently I thought I was doing something wrong and they would just hide and not eat but this h202 looks to have changed everything so massively greatful.

[@MarksShrimpTanks]

Good to hear Chris and nice to see you in the stream, it was you right hahaha

[@chrisjowett8182]

It was mark yes. Good watch

[@Casey_Ezaziel]

Can confirm this works for hair algae I dosed on the higher side but had so few fauna in the tank and sooo much hair algae. It needed two doses a few days appart to get most of it. Dosed 40ml for 70L (1.6ml/L)

[@MarksShrimpTanks]

I have been testing something for a while and this also works but might not be everyone's cup of tea....lights on for just 4 hours a day.

[@PureShrimp]

I have a couple of tanks with some trouble, so now I'm shooting them with this treatment.

[@MarksShrimpTanks]

Thank you very much!!

[@miket7191]

hey mark, when doing this do you need to do a water change after the treatment? thx you

[@MarksShrimpTanks]

No that is the absolute wonderful thing about H202 there is no nasty stuff left after using it, once it oxidizes organics it splits into pure oxygen and pure water, what I do is just do my weekly water changes on time regardless of when I did the H202 Treatment.

[@jeffncompany]

very informative video. any experience with using this on a walstad tank (no filter)? maybe a water change and re-adding beneficial bacteria?

[@ruthcharles8948]

Hi, I’ve just noticed vorticella on one of my shrimps so I plan to try this method but want to know if it will be safe for guppies, plekos, otocincluses, cories, loaches and African dwarf frogs? I’ve got a couple of each in with the shrimps. Thanks

[@docuk65]

If it helps the calculations if you make your volume calculations in litres, just divide by 3 to get how many millilitres of H2o2 to dose. then no need to worry about gallon conversions in any country. (1 cubic foot = 28 litres, or 1000 cm^3 = 1 litre. ) so my bow front 90cm tank is 150 litres after taking off gravel etc. so = 50ml of H2o2.

[@MarksShrimpTanks]

Nice one Del !!!!! I was just thinking how could I make it easier for people to understand and your calculation has made it so people could do the calculation instantly in there own heads more or less !! Thank you sir I will probably mention this in a video and I will give you full credit for it :)

[@docuk65]

@@MarksShrimpTanks :) great if it helps! Thanks Mark :)

[@stefanklein7500]

Just measure the dimensions in decimeter, 1 dm = 1/10 of a meter and 10 cm = 1dm, and you get litre. E.g. a normal 60*30*30 cm tank has a volume of 6*3*3 = 54 litre.

[@docuk65]

@@stefanklein7500 Please remember to measure vertically only to the waterline, then take off a percentage for substrate, wood/rock/ornaments etc.

[@stefanklein7500]

@@docuk65 Sure, just wanted to show how 1000 cm^3 = 1 litre can be further simplified into 1dm^3 = 1 litre.

[@mojocat7]

Thanks so much for this video Mark. I'll be trying this soon for mystery shrimp deaths and green hair algae.

[@tracylee4297]

Thank you, Mark. I have such a great appreciation for you. My one question would be how often do you recommend doing this treatment?

[@MarksShrimpTanks]

Hello Tracy, so far I have only done this in tanks where the shrimp look lethargic or in tanks where I had issues with string algae. I wouldnt do it all the time but I have done it in one tank 3 times within a week.

[@tracylee4297]

@@MarksShrimpTanks Thats good info too. My 40g rcs tank has had so many different issues with the worst and most recent being a bad bacterial bloom. Ive tried everything but to no avail. The funny thing is the shrimp are breeding like rabbits! Lol. I attribute most all of the issues on Black Diamond Blasting Sand substrate. I will never use it again. I dosed the H202 last night and noticed a slight change in behavior but I have a feeling I will need to do this more than once. I will wait 3 days and do it again. Hope all is well with you and yours Mark. Thanks again for everything

[@MarksShrimpTanks]

Yeah I normally wait a few days and then try it again :)

[@erinmcenroe6596]

This worked like magic for my tank, shrimp and plants😀😀😀 thank you

[@MarksShrimpTanks]

Great 👍

[@Jlui83]

Do you need to do a water change afterwards? When do you add the beneficial bacteria?

[@cristianchan5402]

Now...!!! I am trying this... And 1 of my fav Bloody Mary fungus is clean from her berries tummy... I can say... Yes... This is a revolution of Shrimp Keeping... Also i see planaria suffering... But for the algae i thought not strong enough... But i will try for 2 - 3 times treat following with water change... Alot thanks to you sir Mark... Addition : my moss do not melt after 1 hour... Others talk about HP and moss melting... But it seems okay now... At least... I am the 697th like sir... Thanks..

[@MarksShrimpTanks]

You are very very welcome my friend :)

[@DogmaniacEve]

How many treatments to clear the green fungus? I have 2 poor shrimp with it now. I've started on the 1st dose today.

[@unlearnr]

@@DogmaniacEve did it work??

[@DogmaniacEve]

@@unlearnr not on mine, they ended up dying (the fungus were green and visible already in those shrimp)

[@Liljon1983]

I have a sponge filter only system, after the 1 hour treatment are you suppose to do a water change after or can leave it as is.

[@ryandoig2194]

Hi mark update on the hydrogen peroxide method. I calculated tank volume and worked out my 20l with reductions for substrate worked out to be 3ml 3% and my 30l worked out to be 3.6ml 3%. Pumps outlet blocked with foam and now a hour timer is in progress will report any increased vigour in shrimp. Thanks for a brilliant tool ✌ now I'm gona build 2 of the prolonged realise with catalyst

[@MarksShrimpTanks]

try and get stainless steel wire for the catalysts, a fe of mine rusted away to nothing so it just shows you not all coat hangers are made from the same material.

[@ryandoig2194]

@@MarksShrimpTanks I was thinking next time I will use a 22awg ss316 vape wire as catalyst what do you think?

[@pressuredprepper4232]

Mark how often can you do this H202 treatment on your tanks.. I added it to all of my tanks today and was shocked at how energetic the shrimp became and seemed to have a boost of enery or vigor they were swimming all over the tanks... Is Bi-weekly too much?

[@MarksShrimpTanks]

I only do it when I need to, but I have done it in the past before 3 days in a row.

[@ZaMus]

Hey Mark, for how many days should I do this treatmen, and how and when do I know when it is gone?

[@rufinojnleite]

Seeing a portuguese brand in your videos its so strange and fantastic at the same time. Keep up the great videos.

[@ajnfire]

Unexpected! Muito bom!

[@nat-xs2fs]

How long do you leave it before ypu do a water change and how long do you wait before dosing again if need be

[@MarksShrimpTanks]

I normally wait a day and you dont need to do water changes after with H202

[@frankfaller6404]

Hi Mark... used your info on my 3 shrimp tanks ... its brought a new lease of life to them ... I do have an issue with my blue dreams in a 5 gallon tank ... started with 5 .. I now have 40/50 I have a 25 gallon ready to go .. how do I collect all the babies safely from the tank to transfer them .. regards frank

[@yyctimmy]

Thanks Mark. Why do people with sponge filters not need to turn them off? You mention turning off your filters isolates them, but if you have sponge filters do they need to be taken out?

[@elliotborst]

You would remove a sponge filter from the aquarium to protect the bacteria on and in it.

[@lienle9953]

Hi Mark, thanks for your advices. Do I have to change the water after this process?

[@MarksShrimpTanks]

No need

[@lienle9953]

@@MarksShrimpTanks thanks for your response. My shrimp tank has a big trouble with black hair algae. I will try your method today. Hopefully, the H2O2 will help to solve that problem.

[@AuProspecting-Scotland]

I'm trying this today , thanks for your facebook input Mark, my CRS are losing colour since i got them from my mate 3 weeks ago, CBS were/are also brown stained , my water quality is always bang on but isnt helping, ill keep you posted on the results bud.

[@BedtimePasta]

Hows it been?

[@AuProspecting-Scotland]

its been great, huge improvement in the shrimps return to colour, they're more active and very vibrant now , no morts so thats good, all round a good experience using it, i did slightly underdose and its worked a treat.

[@BedtimePasta]

@@AuProspecting-Scotland That is great to hear!! I am on day 2 of dosing, and my guys are looking so much brighter. They were going near purple + see through, now they're much redder, more active! I also under dose to be safe!

[@allansketchy2809]

Did you find you shrimps swimming back an forth for the rest of the day, only settling occasionally for a few seconds before going again? Adults seem fine and eating, but shrimplettes swimming everywhere. Bit worried iv done something wrong

[@AuProspecting-Scotland]

@@allansketchy2809 the shrimp were alot more active since i treated the tank with it, and have been ever since, if you have done your calculations properly then you have nothing to worry about.

[@thedarkabyss100]

I learned about this as a side effect after "fogging" some black beard algae plaguing my Taiwan moss using 10% H202 solution. Shrimps started to act far more active and started truly recuperating after a bacterial infection boom.

[@msack6904]

What do you mean "fogging". I have horrible BBA in my tank, i cant seem to get rid of it.

[@thedarkabyss100]

@@msack6904 Fogging is the act of targeting a specific place with chemicals, in this case H202. I used a medical syringe to do it with the filter off, then used the needle for deeper spots. EDIT: Also another side effect of burning dead and/or dying leaves, making the moss or plant look more vibrant and healthy

[@jeanpierreragequit1726]

Hello Marks. Instead of using H202 i use a Chihiro Doctor device. The principle is the same . The reaction of the electrolysis produce 0² and H² and helps me to reduce algae propagation. I prefer so far that device because i dont need to put some liquid in my shrimp tank. Thanks again for ur video.

[@MarksShrimpTanks]

I think those devices are a gimmick, I understand how they work but they cant add more oxygen than is already there.

[@wrigzor]

Well Mark if the device splits H2O into H2 and O then the O's will find eachother and form O2. It is the exact same thing that happens to H2O2 when it hits the nucleation pebble in the oxydators or any nucleation site in your tank.

[@gooddesign9991]

14:32 - nice timer sir

[@cristalight4700]

I know this is late in the yrs but im having green fungus and I'm not sure if you mentioned having to do water changes or when after adding this in tank ?

[@greypoopon]

So helpful - Thanks Mark!

[@laurabustos6560]

Hello from the future. I know this is an old video, but! I have a question, and any help is greatly appreciated!! I can't find specific info on quarantining the colony that had one infected shrimp. It's pulled, but I'm wondering, and worried about the rest of the colony. So far no one (20-30 asst neo's w babies and 2 Bamboo/ Wood shrimp) is showing any signs. But how long do I need to quarantine this tank? Can I ever add new shrimp safely? Or remove to trade/ sell any shrimp in the future at all? I've read very mixed things as well about substrate. I immediately pulled my one infected Sunkist Neo and was so panicked I put him in a 6g cube I am cycling for a new shrimp colony😱. Will I need to completely dismantle and trash the substrate and plants?!? Or can I just wait a couple months for any possible spores to die? Do the spores die if they don't find a host? Any help is greatly appreciated! I see there's not much more info on this horrible infection in the past few yrs since this video was made😢.

[@3DThingg]

Just did your recommended Dose. Thanks for sharing

[@MarksShrimpTanks]

let me know how it works out for you

[@3DThingg]

@@MarksShrimpTanks Worked out perfect. I have seen and heard many others talk about Peroxide treatment, but yours are clear and detailed. I 1st treated my Shrimp tank (54 L) and waited an hour to turn on the filter, so far every one including newly born shrimps are all doing well. I already saw some of the hair Algae detached and floating around the tank. I will wait a few days and see if it is needed to do another dose. Today I am doing my 200L tank. Many thanks for sharing with everyone this and other important steps to learn and improve our skills at aquarium and shrimp keeping. You are bettering the Hobby and making it more enjoyable and giving us a way out of frustrating situations.

[@3DThingg]

Further to my last comment, I have done my other tank and all is well, except I realised that my RICCIA FLUITANS has dies in both tanks. No other plants or shrimps had an issue but maybe because of the RICCIA FLUITANS plant structure. So I don't recommend this treatment to tanks that contain this plant.

[@ellieelliott7231]

Hi Mark! I have a rampant bacterial infection killing off my shrimp, sped up by the hot temperatures we have had lately! I have done one treatment with h2o2 in an attempt to kill the bacteria to save my remaining shrimp. My question Is, how often can I / should I repeat the h2o2 to try and beat this infection?

[@autumnallalong]

I was wondering this same thing

[@littleshopintheshed]

Hi Mark, thanks for this video. Just added the proper amount for my tank size. With the decaying algae cause water imbalance? Would you recommend a water change after a few days?

[@MarksShrimpTanks]

I dont because your water will be cleaner after than it originally was, H202 cleans through oxidation.

[@johnfletcher2201]

Hi Mark How often can you use H202 as we are struggling to get rid of Cyanobacteria, we dosed the tank last Thursday so when would it be safe to do again. TIA 😷

[@dmrode]

Hi! Should I remove my spike snails and rabbit snails to do this? I'm used to treating aquarium plants with peroxide to get rid of snail eggs...I dont want to kill my snails 😭

[@pecktec]

Thanks Mark I continue to send people with shrimp questions to you. :). I have a question about the filter. If I have a corner filter (or sponge) do I need to pull it out?

[@MarksShrimpTanks]

Hello Sir, thank you and no you dont have to pull the filter just turn it off, you want the bacteria inside it to have a little protection for an hour until the h202 is spent :)

[@alantooth48]

hey mark just wanna let you know that I'm doing this now I'm so excited. I'm sure my strump will be also had one last week that had the green fungus on the swimerttes, So I will let you know later if it helped with the elimination of the spread of this nasty fungus

[@MarksShrimpTanks]

it works wonders, let me know how you get on ?

[@NielsTichelaar]

@@MarksShrimpTanks And did it work on the nasty fungus?

[@NielsTichelaar]

And did it work on the nasty fungus?

[@spinningpeanut]

Did it work?

[@11cassius]

I don’t know anything about shrimp keeping but assume it’s similar to fish keeping in the sense you tank needs to be cycled? Is there any danger of cycle crash? Thanks

[@MarksShrimpTanks]

Yes it's exactly the same as cycling a fish tank👍

[@davidh2709]

You mentioned you turn off the filter to keep the h202 from hurting the bacteria in your power head, so with a Hamburg filter do you recommend doing this?

[@MarksShrimpTanks]

yes all filtration

[@blakemihm2590]

I think this may have saved my shrimp!

[@kevinstafford3128]

I have bba that is starting to get out of control. I'd like to treat my whole tank using this method and i'm assuming it'll take multiple treatments as I am treating 180 gallons tank. Can I get some assistance with figuring out what my actual water volume is so I can calculate the correct dosage? I have plants, shrimp, discus, tetras and so on so i'm really worried that i'll be harming the fish/plants.

[@Bojingforever1]

I just want to know how many times you do it? Is that every week or once a month?

[@wilnauys6157]

Does it sound right to use on a tank 1.2mx60cmx30m =450ml peroxide? It also have a sump system tank of 1mx32cmx25cm?

[@MarksShrimpTanks]

you have a 30 meter long tank?

[@Faboulsfabouls]

I have Otos and I don't know if it's safe to use H2O2 as treatment (I want to spot dose for staghorn and bba)... I read someone's Oto died after using H2O2, he suspected it probably got bloated due to the oxidising algae it ate... Can someone confirm please 😦

[@notflanders4967]

trying to find out if this is safe for fish as well

[@phillipkok6528]

Hi Mark, just to reconfirm , do I need to take out the sponge filter or just stop running it will do? My shrimps are stop feeding on pellet , which they loved previously and I think your recommendation would work

[@4funrc11]

Hey, :) Thx, again! I'll be doing this today on three (3) tanks. I'm going to be using this product I bought at the Walmart pharmacy, "equate 3% Hydrogen Peroxide". The cost was/is $0.54 for 16 FL OZ (1 PT) 473mL. Hope it works. Albeit, I'm pretty certain it will in many ways, as an antiseptic for the shrimp, snails, and basically all livestock.

[@MarksShrimpTanks]

You just have to make sure it doesn't contain anything else, some of the pharmacy stuff is meant as a mouth wash too.

[@4funrc11]

@@MarksShrimpTanks Hi, Thx! Oh oh... maybe? (See below) On the front of the bottle is printed: 3% Hydrogen Peroxide Antiseptic For treatment of minor cuts and abrasions Oral debriding agent Use as a gargle or rinse And on the back is printed Active ingredient Hydrogen peroxide 3% ......First aid antiseptic/oral debriding agent Then the usual WARNINGS - For external Use Only, followed by the, usual warnings seen on First Aid products. *But* it does read, *as an oral agent* for sore mouth symptoms, removal of mucas, phlegm, general sore mouth areas. So, looks like either I have and have used the wrong hydrogen peroxide, or this product is *dual usage* for humans. *Ok, I'll admit it, I'm stumped.*

[@MarksShrimpTanks]

looks good to me, oral debridging agent just means its used to clean wounds which H202 does. if it only lists Hydrogen peroxide 3% on the back I would use it.

[@ProfessorAquaria]

Howzit Mark. Would you recommend this as a regular treatment as part of your maintenance regime? Or iss simply a corrective measure? Awesome video BTW. Thank You.

[@MarksShrimpTanks]

I do it every now and again in every tank and I see a massive difference in the shrimp, you think to yourself yes they are healthy then try this treatment and see the difference. I think whats happening is it reduces the bad bacteria bioload and increases oxygen.

[@Shaden0040]

H2O2 is fairly good at removing cyanobacteria as well. A photosynthesizing bacteria that can be toxic over time if your fish and shrimps eat it. They usually won't on purpose, but it does mix in with other types of algae and gets eaten by mistake.

[@stevenquigley9139]

I’ve been using h2o2 for a while now and I can also say I see the jump in shrimp activity but I’ve also noticed it’s more like a temporary boost. I recently lost all of my shrimp in my tank due to what I believe is a fungus that is also effecting my ferns and devastated my S.Repens. I’m actually pretty sure it might have helped the shrimp survive longer and gave me enough time to fight off the fungus by manually removing it daily. It’s been nearly a 2 month long battle that is I hope finally commin to an end. Spot treatment with everything basically did nothing to what ever this was/is and I’ve found little info that related to my specific situation. But back to the topic at hand so far I’ve only seen good things from fairly regular use and I’m pretty sure like I said it was the only thing that some what held things off until I cld basically save my plants at least. I’m ordering my nxt batch of shrimp this weekend. Fingers crossed all is well now. Nano fish seem happier then ever and plants are looking good and ferns and s repens are bouncing back. Prolly just see if I can get some neos to breed and I’ll be thrilled after that battle.

[@Shaden0040]

@@stevenquigley9139 Was this fungus a whispy white gunk? If so it is a fungus but it is called white water mold, and it feeds off PVC and other plastics. You need light and strong UV light to help kill it off. Bleach, H2O2, doesn't seem to affect it, much. This guy, Dan Hiteshew had it growing in one of his quarantine tanks/filter. First in a small series of videos and how he treated it. kzbin.info/www/bejne/bqSYo2t9bLeJeM0

[@charliebrown9188]

Hey Mark, thank you for such clear instruction, really good video. I had cyanobacteria, treated it successfully and now I have string algae, I tried and tried... water changes... reducing light... feeding less.... it just keeps growing and covering more and more. As a last resort I'm going to try hydrogen peroxide before I fully take everything apart and start afresh, my HP is only 2% but I'm confident on how to do the maths. I was a bit nervous when I first heard about this, but if you treat your shrimp aquarium with it, I'm sure my fish and amano shrimp will be ok too. My question is: how often do you do this? How many days intervals?

[@MarksShrimpTanks]

most Ive done it is 3 days, I have noticed for string algae having floating plants helps a lot, in most my tanks with 70% floating plant cover I have no string algae.

[@charliebrown9188]

@@MarksShrimpTanks Thanks a lot my friend, I think my lighting is too strong, ill have to reduce hours.

[@davidbray1343]

Hi Mark very informative video I use it myself just wanted to ask you about leaving the lights on while treating the tank. I've seen from other videos that other people turn the lights off as light reacts with the hydrogen peroxide and breaks it down. I have found this to be true as when I treat my tank I leave the light off for half an hour then when I switch the light back on very fine bubbles start forming from all surfaces this shows me that the lights are reacting with the hydrogen peroxide and breaking it down. Have you any comments on this technique? Regards Dave.

[@MarksShrimpTanks]

Yes turn the lights of is good advice and I will tell people to do that also. 👍

[@davidbray1343]

👍

[@andysgaff4125]

Hi mark, do you have to do a water change after, vids I've seen say not to leave in to long.... Maybe they use higher dose. I've found putting montramilnerite powder after each water change helps kill string algi and ramshorn snails do the rest.

[@MarksShrimpTanks]

Hello Andy I always just wait and do a water change at the end of the week, I dont think there is any rush with it as the h202 burns out high nitrate levels too

[@andysgaff4125]

Thanx for the rapid reply mark that's a great help. Love your vids, keep em coming :)

[@MarksShrimpTanks]

Thank you for watching Andy :)

[@SoulJah1337]

what is montramilnerite ?

[@SoulJah1337]

@@MarksShrimpTanks Hi Mark, do you always put bacter ae or nordic bacterial in the tank after the treatment or can my tank handle it itself maybe ? Because i only got a 30L tank and an inside spongefilter im worried it kills all my bacteria. Should i take the filter out on that size ? ...rewatched: i think i just take it out with some water for that time :)

[@Kaikoura26]

Hey Mark, I just wanted to make it double and triple clear. You don't turn off sponge filters but in the case of a canister, you turn that off, correct? Also, thank you for all you do. These videos are a life saver.

[@MarksShrimpTanks]

I turn off all filtration.

[@jazmin3112]

Hello Mark, will this help with vorticella? I noticed that some of my cherry shrimp have white fuzz on the tip of their mouth. Any help to remove this is greatly appreciated. Thanks!

[@MarksShrimpTanks]

It can but I think it might harm the shrimp at the dose you would need to kill Vorticella, you are better with salt baths for this.

[@Kenny.-_-]

Is it better to put an air stone while doing this? Add a litlle bit of water flow for the ho2h to react.

[@MarksShrimpTanks]

it produces oxygen as it reacts

[@Kenny.-_-]

@@MarksShrimpTanks I mean a little bit of water movement.

[@AquascapingGreatness]

Hey mark. If i use 6% can i not just half the amount i use? By that i mean work it out for 3% and half it?