Culturing Daphnia-Tuesday Tip

[@Methodician]

It's amazing how many different approaches you can take to culturing daphnia. This is fairly close to what I do but I like to mix things up and add some colorful vegetable matter to my yeast solution and let it sit out for a while so the yeast has a chance to absorb it. This helps provide a more balanced nutrient profile and can also help color your fish. This way you can indirectly feed things like beets to your fish. If you actually put beets in your aquarium it would turn the water color but the daphnea just eat the colored water and turn color a bit, which is pretty cool.

[@joebailey3330]

I watched like six of these in the last hour and this is the best one very educational well spoken clear and well understood I'm subscribing

[@VyvienneEaux]

I dropped a few Moina into a planted fishbowl that had a persistent green water problem for months that I couldn't get rid of even with 200% water changes and blackouts. After only four days, the bowl was teaming with them and the water was crystal clear. I couldn't believe my eyes! I put one of my female Endler's livebearers who wasn't eating very well after her last batch of fry into the bowl, and she's been gobbling them up very happily.

[@brucetaylor2887]

I had some real trouble breeding daphnia. Earlier I'd tipped some in our fish pond (that had no fish in it). It was full of mosquito wrigglers so I doubted they would survive. Then about a month later not having much luck I took some water from the fish pond (thinking it looks like green water which they are suppose to like). It had loads of daphnia in it! Like loads and lots of really big ones. My Axolotl babies are loving it and I don't have to do anything but net some out. There are still loads of mosquito wrigglers in it but they get eaten just as well.

[@RachelOLeary]

Stop by my facebook: facebook.com/msjinkzd/ Visit my website: msjinkzd.com/

[@gerardschulz3526]

Where can I buy Albania started. I ordered from nd. Didn't live 24 hrs

[@michaelyciano2123]

I have a 10 -1 gallon jars in a sunny garage window with daphnia going all summer and spring. I have a 5 gallon bucket setting the sun with old tank water and I use it to top off the 1 gallon jars. Never feed/add anything but the algae water. Very very easy.

[@theangleraquarist]

Green water is the key!

[@karenjgray5577]

Great to see another fish keeper into the tiny fish species.. the smaller they are, the better I like them. Also excellent info on daphnia culture, which is not difficult but also not bomb proof either. I'm a huge fan of live food for fish, as many different ones as I can find and culture in a small apartment. Nicely done !

[@yepperdeedooda]

If you look at them really close, they really look so cute that I changed my mind and keep them as pets now.

[@ledfed1912]

they are pretty cool

[@lightwavz]

Yes, I want them as pets. When I was growing up, my science classroom had a giant jar of them. I never got tired of watching them!

[@rafaelbarja3419]

babe

[@Waynesday13]

Yup

[@dsmith6868]

Maybe you can use scuds instead. Fish love to eat them and they actually might be easier to care for because they are hardier and less likely to crash...however they aren't as cute.

[@Bwizzle89]

Nice. Just got some freeze dried. Very helpful and smart. Just got into the hobby again. About for 4 years.

[@mattcali8725]

Thanks for the video. I think I enjoy these videos so much because I have been around a few keepers that will tell you what to do but not how to do it. thank you for connecting the dots... or daphnia. HA!

[@SJLA]

One of the most, if not the most, informative and clear explanation on Daphnia! Thanks... Im gonna try my hand at some Daphnia culture tomorrow! Thank you!

[@BlaisZeroni]

This video is packed with good info, well done!

[@MikesFishRoom1]

Love it! Thank you for the needed detail. Have been culturing brine shrimp and this seems far much easier!

[@livinsite1]

Perfect video. I was really hoping to see the tank close up. I almost thought you never will :).. Loved how the water became cloudy. Looked like a special effect.

[@SirenSeaAquariums]

amazing I was considering doing a culture I've seen so many people doing it but didn’t know where to start i do have and use freeze dried Daphnia to feed my livebearers exceptional video very helpful I'm less fearful in trying it

[@skinney0011]

Thanks for the great info. I ordered 4 cultures from Frank right after I saw your video. My first culture died immediately (aquabid) but the cultures from Frank are doing great! My fish LOVE daphnia. Thanks again for the info.

[@Beursblik]

Thanks for the tips, green water is difficult to maintain, I'll go the the shop and buy some yeast :). Also if you use an air pump with fine bubbles, indeed they get stuck to the side of the tank an die. Great video.

[@camerazeye7923]

Thank you so much Rachel. I am looking to catch some wiled Daphnia in the summer when the ice melts.

[@clearegtower9468]

Cool video. :) I found that Daphnia seem to do well in outdoor dirted tanks. I had set up a 50 gallon plastic tote in my backyard for some fish I wanted to breed over the summer, and after I removed the fish for winter, it got filled with leaves and dirt. Next spring the water went green, and it was full of Daphnia. I'm gonna try it again this year, and see if I get the same results.

[@RachelOLeary]

+Josh's Aquatics & Railroad Videos awesome! I know a lot of folks have success outside, i had issues with secondary pests when i did them outside (mainly damselfly larvae)

[@clearegtower9468]

+Rachel O'leary I'll probably try using a 5 gallon bucket with a mesh screen over it. It'll hopefully keep the mosquitos out, too.

[@miron1189]

+Josh's Aquatics & Railroad Videos isnt mosquitoe larvae good food aswell

[@RachelOLeary]

as long as you harvest the larvae in time! mosquitoes are a real problem around here.

[@Lynda-Bradley]

Thanks Rachel. The explanation you gave about preparing the yeast was extremely helpful to me. I am going to try to culture daphnia again.

[@jagskillz9975]

Look forwards to tuesdays,great channel,Thx Rachel!

[@TigerStrike8000]

So I am late watching this video. It is four years old now. I wish I could say I’ve seen it before but my memory is not as good as it used to be. I think it popped up because I just recently bought some and started my own culture. Love your videos. Even the older ones.

[@CHRISXTR3M3GAMING]

I am so grateful for you and all your knowledge you share with us

[@PotooBurd]

This is so informative! Great job, fantastic reporting!🌻🌼🐝 Keep it up 🙌

[@CapeFearKoi]

I just ordered my first culture and came across this tutorial. Very informative. I will be making a similar video on how a newbie to Daphnia succeeds or opposite! Thanks for the easy to follow methods.

[@BuddyMayfieldFishBuddy]

awesome timing. I was just getting ready to research this and now I don't have to!

[@harryclarke8877]

I was worried that they would be sucked into my filter but I can see you use a standard sponge filter which is a relief

[@judihammett8891]

Great video! Did not know daphnia could be cultured so easily.

[@bigyak35]

great video awesome valuable information made simple thanks a bunch i needed it got my first culture coming in this weekend

[@pigeonracinglife]

Thanks for this video!!!! Had success before and plenty of failure but your tips cleared up a lot of things on daphnia I didn't know especially on your feeding. Great video and thanks sooooooo much. My Hellboy Bettas thank you more than me 😂

[@FooYoungHi]

I maintain decent cultures of them in big buckets (around 100L each) on my balcony. I cover them with a mesh, so that mosquito's can't lay eggs in them, because that would flood my house with them. I feed them bird poop. I have 3 parrots (healthy, so no parasites) and their poop will dissolve in the water, stimulating the growth of floating green algae (green water), I believe that is their natural food source. The more sunlight, the better it goes. These creatures are amazing. Even when the buckets freeze over during winter, they will emerge again next spring. I advise everyone to read up on these amazing critters, their life cycle is quite interesting. If you want to feed them to fry, you can buy a seeve set that has multiple sized seeves that you can stack. This way you can separate the smallest ones from the big ones. That way they are a great alternative to artemia naupli.

[@TheAxebitten]

Thanks for the useful info. They truly are amazing critters by themselves, not only as good food.

[@TheBSideDJ]

maybe a asked my question a little too soon, ... i wil try a drop system to my waterchanges, maybe that wil help (still learning :).... ) : I found this on fins.actwin.com/live-foods/month.200102/msg00014.html "........ You seem to have "liquid rock" for water! My water is about 400 ppm hardness -- slightly softer, but not by much -- and several species of Daphnids live in it OK. The trick is to VERY SLOWLY aclimate them to your water. Daphnia are sensitive critters -- that is why they are used for water quality testing -- and any rapid change in water parameters will likely result in stress and eventual death. I would recommend that you, literally, add your water to the starter culture drop-by-drop (through an air line with a valve or a knot) at least the first 50% of the fresh water. The slower you add the water, the less stress on the Daphnia, the more likely the successful survival. In similar situations I usually set up a drip overnight, so that I loose no time fiddling with adding the new water and the critters (crustaceans or fish) have an easy time getting used to the new water. ..."

[@ricklett1688]

Why would you not want to skim off the mosquito larvae for the fish? Theee best food!

[@johnroy9654]

Because in addition to having food for the fish.. some of those larvae will mature into adults.. and then you become food for the mosquitos.

[@yellowmellowfellow6723]

Does it goes for all daphnia? Because i am thinking if starting a moina daphnia culture going soon.

[@hatnixzuverlirn]

very good vid, Rachel. I only have guppys but I got a spare tank, where I'll be testing out some kinds of diy filtration. I think I'll try to culture daphnia there in your way, when doin sponge filter testing... thnx

[@JenaTuckerAquariums]

Hi Rachel, thank you for all of the info you glean from your hard work. I do appreciate it. If you don't mind I have a few questions for you about the daphnia culture? Is a 10 gallon OK? It was free. Will my fish benefit: tiger barbs, gouramis, tetras, angelfish, Betta, zebra danios, Cory cats ? Do you cycle it like other fish tanks have to be? You have plants, don't recall what kind, but will rewatch video, so what kind of substrate then? How about a heater? What temp? I want to supplement my fish diet. Are my fish the kind that will eat them? Is anyone able to order from your friend Frank? If not, do you recommend anywhere? How do you do water changes without getting daphnia? A specific ph, temp? Sorry so many questions, but I am really serious about this! Thanks Rachel!!!😀

[@markrivera4911]

Great video. Love the shirt, Joey would be proud!

[@michaelagostino3483]

Great video, learned a lot, never tried to grow (culture) my own Daphnia, but after watching your video. It doesn't seem so daunting a task with a little work and practice.

[@cindyluroman7238]

I have a culture coming... Thank you for your help in setting up a place to grow them..

[@Manigrio]

Awesome! Thank you for the video Rachel

[@pattibergland162]

Very helpful and well done.

[@nickys5578]

I add a bit of compost tea that has been boiled. I have had an outside culture I put some straw in and leaves fall into as well occasionally. I put a culture in my horses water trough to clean up algae so probably horse slobber in there. but dead animals and strait waste ... I mean the outside one is for the pond fish and the one in the horses water are cleaning up algae probably put some feeder fish in there to eat up bugs if any get in there.

[@007clanger]

i have an unintentional daphnia culture, its in a small heavly planted tank with no fish. the original water source i used for the tank was from the local resovoir. in the tank they seem to cluster around the bucephalandra

[@jaybrielakoi7747]

Love your stuff. Keep it up.

[@pauljacobson7360]

Informative! Thank you Rachel

[@gaddammitkyle]

Would you be able to make a video on how to make green water? There’s very few videos about it

[@graffitijunkiejfk]

So much information. Cool T-shirt too...

[@RachelOLeary]

+Art Hunter haha, was waiting for someone to notice that! Joey and I filmed wearing each others shirts on the same day, totally by accident! Was hilarious :D

[@crazyjoee]

0:47 Hemoglobin is what transports oxygen in almost all vertebrates and some invertebrates. They synthesis more hemoglobin to assist their active oxygen transport whiling living in poorly oxygenated waters. They can never survive entirely without O2 though

[@ArchangelHornet]

Youre the best rachel!

[@karenjgray5577]

I proof the yeast too, but I've always added the tiniest pinch of sugar to the water with the yeast while it proofs, to give it a bit of an energy boost as it comes out of its dormant state. I'm sure it's not essential but I do it anyway. Leave the yeast 'til it's foamy and bubbly and the sugar will be fully metabolized by the yeast, so there is no danger of adding any actual sugar to the tank. If I find my yeast has died ( it won't bubble up if that's the case) I use it to feed microworm or springtail cultures. The worms and springs' appear to relish any yeast, even if it's not alive.

[@RachelOLeary]

+Karen J Gray I do that when baking bread, makes sense

[@ToenzZz]

Thanks to you, I’ll raise my own Daphnea! You have my thanks

[@johnjwedrall4290]

Very helpful video 👍 😊

[@MusingsFromTheDen]

Now I know how the sealed sachets of daphnia at my LFS survive without oxygen! Great tip, thanks. 👍

[@luisabelnovelo1207]

love this video!! great i was able to find something clean and poopy-free. though im really curious about what you used, okay you said 20 gallon aquarium and a lamp i see. i also see some plants. but tell me is there a heater involved i really cant see any. please advise.

[@lynnberg7812]

Facinating information, I used to do this in Nebraska, but here in New Mexico it gets so hot...and where could I buy a starter culture of Daphnia? Thanks

[@psmollen2056]

Thanks so much for the tips...setting up tank with your help!

[@JuanSoloUnoGuey]

how do you go about doing a water change without removing any daphnia?

[@hanyo1o132]

JuanSoloUnoGuey i would put the fin mesh net over the siphon, or pantyhose

[@bobbymalta73]

@@hanyo1o132 You can use an airstone at the end of the siphon tube to prevent daphnia been sucked out!

[@gregghorner9107]

I simply pour the changed out water through a brine shrimp net and collect the daphnia.

[@vicstyn7183]

Great video

[@lifehappened8216]

great video, thanks, i never even know that there were such foods for fish.

[@EuroGupper]

I started growing 1 ( a survivor from 3 bags i bought thinking if i buy enough they would be able to survive in a aquarium with my fish. My fish proved me wrong in about 15 minutes) You are right about the green water. Ever since my 1 daphnia survived and i assume i have about 20 now, the green water has started clearing up. Instead of yeast i use protein powder that was meant for my consumption but i did not like the taste. Are Daphnia vulnerable to moderate to high levels ammonia, nitrates and nitrites?

[@MatthewMcGregorMento]

Great video! I wish more people would talk about their experiences with daphnia and other live cultures. One note. Daphnia feed off microscopic food. If you can see cloudy water that could be more food than they actually need. In some cultures this could lead to a crash. But it sounds like you found a system that works for your needs.

[@chuckt8354]

I've mentioned it before... one of the things I've found is that Dario Dario aren't able to eat them if the daphnia are too big (actually the little pigs would rather have white worms!). I've been working on a sizing method where I drill small holes (sized slightly larger than the feed size needed) in a translucent plastic container, clip it to the side of my culture tank and put a small flashlight or small light source there to attract the daphnia. After a while the smaller daphnia get through the holes. I use a turkey baster to suck them up and put them in a specimen container for feeding. Not a perfect system yet but it does save the reproducing females (they are mostly all females) and get the young "veal" daphnia for my boys!

[@chuckt8354]

+PapaDondervogel I've seen this place. It looks like more of a supply house for schools. I have magna. I would like to get pulex which is the next size down. I forget the smallest ones name but I've read it is too small for Dario Dario. My daphnia tank is on a lower rack so I just put the light to it and use a pipette to suck up the smaller ones leaving the adult moms to have more. I have what I think is a monia culture picking up pace so I'll try them soon to see how they go over. I'll try some mosquito larva too when I set up my mosquito trap. Just trying to vary their diet... so far they only eat live foods.

[@papadondervogel4159]

+Chuck Troast "looks like more of a supply house for schools" Exactly!! You may be surprised how many aquariums are maintained in High Schools and Colleges. This place is a great source of basic algae cultures, invertebrate cultures for foods, aquatic plants, etc.; all top quality. I kept aquariums in high school and earned money (and room for my personal aquariums) taking care of them in college.

[@AquaticDomain]

Great video! Are you still maintaining and feeding daphnia? My killed my first culture almost immediately. I think I overfed them. I decided to setup 4 tanks this time including a 38 gal rubbermaid. If I crash one I have extra tanks that hopefully won’t crash. I’ve read they don’t do well with plants. I noticed you have plants so maybe that’s not necessarily true. I also heard you should drip acclimate them. Love to hear your thoughts.

[@deadfred821]

1:15 😒 I prefer to do things a bit differently.... 🤣The look on you face when you said it though....

[@loftyskies123]

got mine outside in an old fishtank ,and i feed them on yeast and spirulina and rice flour now and again . and they seem to be doing ok

[@brianscott4444]

Awesome! Thank you for this video. Much appreciated!!

[@missesraisin]

Wow Rachel, i'm a new subscriber and I just love the information you have. Thanks for the detailed videos . I'm starting this hobby in the last couple years and loving it. May I please ask if it is bad practice to keep up to four different species together feeding different foods? the fish are eating the frog food, frogs are eating the female bettas food, bettas eating mollies food and so on. If you have a chance to answer, or work it into a video, I would so appreciate it. thanks missesraisin

[@RachelOLeary]

+missesraisin the vast majority of commercial foods have the same ingredients, so it should be fine

[@missesraisin]

Great thanks for your time, I look forward to new material. Misses raisin

[@justbaquatics2512]

brilliant thanks set up and running well.

[@terrram6307]

These things just appeared in one of my small tank n spread to all my tanks n filters. I noticed as it progressed from system to system that as each tank got them the filters stoped workin!!!

[@alexr.4955]

I just want to say this is a well explained video about colturing daphnea, my Congratz. I have an Aquaponics set up in backyard inside a greenhouse, have minoes, crayfish and soon catfish. I am really looking into producing my own daphnea for personal use and this video is so well done. Thanks!

[@helios4810]

Do your crayfish eat the daphnea, then? I'm planning to set up a dwarf crayfish tank soon, and was wondering if these would be a good live feed source. My main concerns would be how fast they are, how much protein they have(as apparently adult crayfish don't need as much?), and how one would get a good balance of this? Sorry for asking you, I couldn't find any info online as of yet. (And it's really interesting that you post this like a day before I really start looking for information on daphnea)

[@alexr.4955]

@@helios4810 diet balanced with calcium pellets, and a high protein diet. Also i feed them worms. But the daphnea is one of their foods at early age

[@helios4810]

@@alexr.4955 Ok, Thank you! I'm not planning on getting either for a bit, but I love planning way too early, so this was invaluable. And yes, I was hoping to get a juvenile crayfish, so hopefully Daphnea will be perfect balanced with a quality pellet.

[@somuchluv89]

Warm water is better than hot for yeast :)

[@joop6045]

How do you change the water without sucking up the complete culture 🤔

[@warman]

Amazing video, I learned a lot. THX.

[@wildsprig]

Hi Rachel: You really don't have to proof yeast. Proofing is just to confirm that the yeast isn't dead. It used to be more common, maybe 100 years ago or something. But, with commercial yeasts, in all my years, I've never had a single case where it was dead. Just an FYI.

[@wendigolycan]

Egg yolk does really well with these guys, too. Used to breed them in a small pond when I was a kid, for my guppies and stuff.... Amazing creatures and really convenient to keep if you have many fish. Kinda like a roach colony when you have many reptiles. ;) (I have those too :D ) All in all, your videos are amazing and I'm really happy I found your channel! :)

[@hendriyahya7995]

You can use the water from catfish also to feed daphnia

[@psmollen2056]

I live in Florida and worry about the temperature they like..house is constant 78 degrees, will they survive? Thanks for your hard work.

[@bobbymalta73]

Thanks for sharing Dear Really Helped!

[@sidaarthramabhotla1268]

Do you need a cycled aquarium for daphnia

[@Jeromeeb]

Frank! I got my daphnia from him this past weekend

[@coelacanth9311]

Great video, very useful information. Could I use the daphnia I buy in a bag of pink water from my fish shop to start a culture? Could I also ask if the yeast you use is dried yeast?

[@RachelOLeary]

+Coel Acanth yes, its regular baking yeast so dry. Yes, the water probably isn't pink, but the daphnia is

[@coelacanth9311]

+Rachel O'leary Thank you! I had wondered about the water colour :-)

[@DominicGuarino]

How do I join in on this DIY fishkeeper shirt club? :D

[@RachelOLeary]

+Dominic Guarino haha. Joey and I exchanged books and shirts as gifts to each other

[@Phish-san]

hey Rachel love your videos just wanted to let you know you should keep feeding your daphnia Spirulina and other types of algae as yeast offers very little in the way of nutritional value and obviously using them as a live feed you want to be passing on that value to your fish.

[@RachelOLeary]

thanks! I do :)

[@andreisenju7272]

in my experience, I never like success culturing daphnia, but I kinda collect daphnia every day to feed my fish because in our country , daphnia are all over .

[@karenjgray5577]

Btw, the hot water ideally should be about 110F. If too hot it kills the yeast.

[@block5178]

Hi Rachel, I have a setup I'm building where I'll have a guppy tank sharing circulation with a small open bin pond (and a home made filter). I was thinking the little pond could maybe house a daphnia colony, there would be a bit (not a lot) of flow in the pond. Do you think this is viable? what about having a daphnia colony with a betta? Will this just result in him eating till he dies or all the daphnia are gone?

[@kathleenmonsegue9700]

Hi rachel i just barely got my 2000 live daphnia culture yesterday. And might have over fed my daphnia with spirulina powder that was mixed with water thats filtered by my fridge. Now im seeing some dead daphnia. Idk if its from the fridge water or from me pouring them in without letting them come out slowly into the tank after acclimating them properly. I dont have a heater for them. Im in southern california and its pretty cold outside and kind of cold inside my house too if i dont keep my heater on at 79°F. Im stressing out cuz this is my first daphnia culture.

[@kathleenmonsegue9700]

@@TheAveragePainter i dont have a filter in their tank. The water i used was from my refrigerater door that was filtered.

[@kathleenmonsegue9700]

@@TheAveragePainter wow i never knew that.

[@thefishylife6823]

Can you imagine a dead rat rotting in the tank.... LoL. Ok I'm sorry that is crazy ! I'm learning alot , thanks for the info and knowledge you are awesome ✌️🐟✌️

[@catherinehill4029]

I wish she had a book, that I could buy, or put on audible. I want her knowledge 😭

[@shaelynvandenhouten4958]

She does have a book not sure what's is called but I'm sure you could find it if you googled her

[@RachelOLeary]

It's out of print now

[@rbo350]

I purchased a culture of daphnia and spit it up into two containers with tank water and the next day I fed them yeast but a couple of days later both cultures died, the seller said I shouldn't feed yeast but only green water??

[@clawlan]

How do you get the yeast to proof without sugar? When I stir into warm water, it never bubbles, using brand new yeast.

[@Selenachichi]

Any thoughts about feeding paprika? I was told this works great.

[@ilostmypointer8695]

Yeast and spirulina is best. They breed like crazy when you feed them that. It is also said that daphnia fed yeast are more nutritious than daphnia fed green water.

[@JayMae69]

Great vid...Are these the same thing as seed shrimp? If not, Are you familiar with seed shrimp? Any info would be great. Thanks

[@RachelOLeary]

+JayMae69 Oopps! just seeing this. They are different than seed shrimp. Seed shrimp are ostracods.

[@Indiana424]

sorry im so off subject, how does one decide to sleeve out, or is this something that jus happens over time??? What are your thoughts on face tats?? Great vid as always......

[@RachelOLeary]

+Countryboysmoker420 I had a plan for a long time, still a lot of tattoo work to go.i like to stick with one style and few artists to it has continuity. Personally I am not a fan of face tattoos, but I have not run out of space yet. I was going to joke and answer "a series of questionable decisions"

[@julianmorgan8454]

Hey Rachel, thanks for the very informative video. How important is it to get the bubbles on the top of the yeast? I can get it to go milky, but it never seems to bubble no matter how long I leave it, and I've tried a few different brands of active yeast. Also, when you say hot water - how hot is that? Lastly I read somewhere that daphnia don't do well in water that's been conditioned i.e. had Prime or other dechlorinators added to it - though obviously loads better than they would in chlorinated water! I forget the reference but I think the argument was that the Sodium Thiosulphate inhibited their reproduction. I wondered if you'd come across this in your reading or if its just another internet myth? I know you're on a well and don't have to dechlorinate, but hoped it might have come up in one of the articles you mentioned? Thanks again :)

[@OmarTheDeadAziz]

how do you do water change on a daphnia tank? when you spyphone the water out, wouldn't a buncha daphnia go to waste?

[@andrewmarbrook2626]

Rachel, thanks for the advice. I'm finding when I use a sponge filter this 'clears' the yeast. Does this happen with your set up as it seems to defeat the objective of feeding the daphnia. On another subject is spiralina a suitable substitute for infusoria for young fry? Thanks in advance.

[@theanimaladdiction]

Could you feed green water and yeast every other feeding?

[@DaryMJ]

Hello, Thank you for the video, and I have a question, I have a culture a daphnia that I just received and I have them in the container, big enough, but them seem to be swimming desperate in the surface at the edge which is facing the window, in the indications it says "do not put them directly in to the sun light" but it seems to me that they wants light, could anyone give me an idea or suggest me what to do? Thank you very much

[@yellowmellowfellow6723]

Thankyou for the great info!

[@haihai78]

great video, do you do any water change in the daphnia tank? if so how often and what percentage? Thanks

[@RachelOLeary]

+Haitham Al Anizi Yes, weekly small volume (10-20%) with aged or matured water

[@Pssst.ByTheWay]

my coultures indoors crash out everytime. outside in buckets and tubs etc they thrives. they dont enj0y flow i read somethere