Treating external fish parasites Fish lice, flukes and Trichodina in a koi and goldfish pond

Here we have an isolated population of koi and goldfish that are suspected to have acquired diseases via ducks acting as vectors, ducks moving from pond to pond can spread various diseases. Fish Lice are visible to the naked eye and easy to to identify without special equipment, but there can be other disease-causing organisms lurking that can only diagnosed by microscopic examination by your fish veterinarian. Treatment for multiple diseases can be complicated, and we must consider environmental and host factors and in this video we treat this pond for several parasitic diseases we found to be present in this fish population.
This unique POV footage was taken by my client.
Your Sincerely
Dr Richmond Loh
DipProjMgt, BSc, BVMS, MPhil (Pathology), MANZCVS (Aquatics& Pathobiology), CertAqV, NATA Signatory.
Aquatic Veterinarian & Veterinary Pathologist.
Disclaimer:
The opinions expressed on this channel and by Dr Loh are created for educational and informational purposes only, and are not intended as a diagnosis, treatment or as a substitute for professional Veterinary advice, diagnosis and treatment. If you have a question or concern about your own fish, please consult a local Veterinarian or professional to address your needs or concerns, or for advice on specific treatments for your aquatic pets.
The Fish Doctor Channel does not endorse or recommend any commercial products, medical treatments, pharmaceuticals, brand names, processes, or services, or the use of any trade, firm, or corporation. Names are for the information and education of the viewing public, and the mention of any of the above on the channel does not constitute an endorsement or recommendation by The Fish Doctor channel or Dr Loh.

[@neptune4167]

This lady loves her fish, and she is a great camera operator!

[@meowmeow1081]

Thank you for this amazing video! I'm learning about fish parasites right now and this is a great example for me to see how they are treated in a real-life case and the way to explain a treatment plan clearly to a client.

[@TheFineLine920]

You are... No doubt the BEST! YOU ARE AWESOME & FILLED WITH GREAT KNOWLEDGE! Everytime I watch your videos I learn something new! ❤💗❤

[@AkosiScorp]

I have that on my fish years ago and i was so happy i thought it was a baby stingray i promise no joke😂

[@juanhernandez-olvera3010]

Me to

[@jeromecesartutor8995]

i thought so too ...because it exactly looks like a stingray

[@cherryblossoms4528]

LOL thought the same

[@sheebaebenz]

Yeah me too

[@celestevaz4026]

😂😂

[@huntzkush]

A fish pond!! Holy hell that's cool. One day I'll have my own as well.

[@huskayaken8252]

Huntz Kushe Same XD

[@eliteevildarkness5830]

Don't !!! Don't dont don't!!! It's a big big big pain in the asss

[@cococupcake9660]

Thank you so much! I saw a fish louse on one of my goldfish pretty early, and I used tweezers to pull it off. I also bought some new fish, and one of them had a fish louse as well, but I was able to pull it off. I was pretty confused as to what the parasite was, and now that I watched this video, I now have more insight on fish lice. Thank you again!

[@thefishdoctor8746]

Hope there aren't any eggs or tiny ones that could be missed.

[@timberwolf9363]

Thoroughly enjoying your videos and as fish keeper myself learning tons.. I hope you keep doing these videos..

[@khoiboi4169]

If you keep a cockatiel, you can instantly recognize the bird sound.

[@mpwall123]

Another informative video Doc...thanks

[@smartdust6211]

This doctor is excellent! I am very disappointed in the human doctors. They don't know how to use a microscope.

[@elsamp]

Ignorant

[@grandmastermicochero]

you're insinuating that Dr Loh is NOT human??

[@cryptocorynes1253]

smart dust human doctors?

[@meloniejen8400]

???

[@ujjvalw2684]

All that chemicals are so hard to remember!!How can we do that in a small fish tank? I don't understand!!

[@rambojambo3738]

If you get a normal test strip kit it'll have a chart to compare it to. I just googled what was normal for each one. Some fish have slightly different water parameter needs, so you might want to Google each fish's needs before you get them so you Don't have fish living together that need different water parameters. I hope I helped. :) I'm still pretty new to this too but that's just what I've found useful.

[@DuneDemon8]

That is why you need a fish vet to take care of your fish. All animal deserve top care, if you can not provide it, don't get the animal.

[@conflictortiz8906]

Get an angelfish they'll eat the lice

[@nikolaradakovic5050]

I can take a two weeks holiday only to watch your youtube videos

[@toughmanrandysavage3077]

I found one of these on my commet and I was like WHAT THE HOLY FUCK!!!

[@OsKr27]

I really like your videos! Keep up the good work!

[@KingAlpha82]

I love 😊the vid besides that annoying bird in the background 😒

[@SarahBecker]

Thats funny you say that about the bird. I was watching this video with my conure next to me and he would not SHUT UP because he was calling to the bird on the video. So for me it was extra annoying because My birds was screaming too.

[@meloniejen8400]

Priviledged fuck not appreciating nature, also really? You can't focus cuz of one bird?

[@huskayaken8252]

Melonie Jen Lol I love ur comment

[@lalaithan]

@@meloniejen8400 I hope you solved whatever made you so mad.

[@wyomingadventures]

@@lalaithan I don't know where it went. Your comment about toos not tiels. But that's definitely a cockatiel. I have had many of them. Plus I take my comment down. I was using sarcasm. I love all birds!

[@joeyggonzalez9563]

yes but what we can get to cure the fish on internet or regular petshop treatment medicine names that's is what we need to know

[@janelle5884]

im really upset..i thought those were baby fish in my tank :(

[@hachibidelta4237]

My platy fish pond is infected by anchor worm, i noticed something was growing on them for 3 weeks and only now that i realized there were these parasites attacking my fish. I caught my infected platies and removed the parasites manually, before they lay egg and die again. Im pretty sure that there are eggs scattered in my small pond :((( help me! I did 50% water change today, so i could atleast reduce the number of eggs these annoying crustacean. I don't want to use dangerous medication that could kill my pretty ramshorn. I also notice that some of these worm are dead but still attached to the fish, is this common? Does small amount of salt help kill the young parasites?

[@fishoutwithjuno]

Goshio Arago how are they doing?

[@rambojambo3738]

If you Don't want to use chemicals the only other way would be to use tweezers and manually remove them. I think using medication is fine as long as you do lots of research before hand. Hope I helped:)

[@netje4everchannel738]

I am so exhausted and sad. I have been battling some type of parasite that keeps killing my fish. I have bought so many different products and nothing is fixing the problem as I do not know what I am treating. I have an excellent compound microscope and have excellent photos and videos of what is lurking in my tank but no one will help me identify what I am seeing. Is there anyone out there that can help?

[@preciousayawei4695]

You can share the videos or photos, I might be able to help you identify them to family and /or genus level hopefully. If I do not know, I'll also say.

[@lettucemayopickleketchup47]

same here i have no clue either contact me and we can discuss what wrong i need all the help i can get PLEASE

[@thefishdoctor8746]

We've created a Facebook page where you can post pics/vids of fish ailments - tinyurl.com/thefishdoctor-facebook

[@fabriglas]

Love the channel, love Australia...the intro music though not sure of

[@aquaking45678]

Pls tell me about lice controlling drug to aquaculture

[@mitchfaithseva6375]

I'm so stressed right now my aunt bought an aquarium with two kois and gold fish they are my pets now I'm so attach with them... I'm a newbie i watch youtube vids about my pets and it makes me mad cuz my one koi don't have gills😢😢😢 idk what to do poor baby😢

[@sito64]

Fish Doctor . Can you tell if all koi have some type of bacteria ? Also I checked my koi looks like I may have gill flukes but I only saw 2 bacteria on the microscope I did swab from one end to the other . Thanks

[@mondraymondo]

I hate those lice. They made all my fish die when i was a kid - and back then fish husbandsry wasnt as advanced as now. Now i know we can dislodge them with salt

[@yenriver5255]

I am curious if we treat the fish with internal parasite, would DSMO dissolving Fenbedazole and added to food as feed be harmful to fish>?

[@darrenmahlke7640]

Good video but I have crayfish in my pond also alot of fly life and worried I might kill everything it's roughly a 20000lt pond with some koi and grass carp , orf , goldfish and a tench . What would u recommend I use to kill the lice

[@thefishdoctor8746]

Unfortunately, the medications that are effective against lice also impact on your aquatic fly life. I think though, it's worthwhile eradicating the lice, and then as time passes, the fly life will return.

[@darrenmahlke7640]

@@thefishdoctor8746 thank you for your help and yes I agree with you . At the end of the day it's the fish that are suffering and through nobody elses fault but my own . I introduced weed from a lake stocked with rainbow trout . Thanks again

[@rohupatil1362]

Doc u can help me my peael arowana have developed bumps or big pimples on face

[@shreepriya9762]

my goldfishes are infected with fish lice and I have used paraclear medicine and changed water can u suggest me further management to eradicate fish lice from my community tank

[@americachupistarandi811]

shree priya hi sree my fish also effected with lices is paraclear medicine is helpful for u ? If not suggest me reply as soon as possible please

[@fish.n.ansari]

shree priya ------- Hey I know I have cured my gold Fish , gouramis from lice , they happen due to ugly water quality , nowfurther the treat , first of all remove the fish from the aquarium and get a solution of potassium permanganate liquid form from and aquarist or a chemist and drop 3-4 drops of it in a small vessel and bath your Fish into it , do separately for all fishes and then clean the tank thoroughly , you will see the lice marks on the fish will be gone and the tank will be soon Licefree 👍😊 If you found this helpful then please Subscribe my channel Fish.n.ansari for more fish related videos 👍

[@neel9137]

Angel fish can help cure lices

[@yolo8295]

@@neel9137 watched Dexter's video?

[@neel9137]

@@yolo8295 yes, his videos are really informative.

[@tylerjohnson4600]

3 diseases wow! Poor fin babies good thing she got ahold of you :P

[@hardycabscastilldome7703]

i love watching these videos of yours. Can i request to make video of treating lymphocytes in fish

[@hardycabscastilldome7703]

i mean lymphocystis

[@debzyoung3353]

Hello Mr Richmond, what is the main cause of fish ulcers? I've had problems since autumn, lost a few fish!! Currently treating with lernex, and swabbing with tamodine and sealing with propolis wound seal.. My water parameters are good, thank you

[@jessieschnell9919]

I have a parasite or worm larvae that I cannot identify. Tiny white bugs that either molt into worms or I have worms too. They have infected my fish and turtles. I have been dry docking my turtles and these things don’t die! They are living in between the crevices and under their carapace and today I found three of them with bruised and swollen jaw lines and as I squeeze the area, the worms and tiny white bugs are there under the skin!!!! I have treated for anchor worms with Dylox and Proform LA with no impact. Salt did not do anything and I’m currently treating with metronidazole for possible internal worms because I cannot figure out where these things are coming from!!! I have recently seen some gnat type flies on the top of the water in the one tank I haven’t torn down! Could these be some type of fly larvae??? What small fly would have larvae that would bury themselves under the skin???? I have gone to two different vets and have wasted hundreds of dollars trying to identify what this is so I can treat it!!! PLEASE HELP!!! I am SO DESPERATE for help!!! I have photos and videos I can share. Please let me know if you can help!!!

[@raghuveerkumargupta2032]

Good evening sir I have one question that, how to preserve this type of fish parasite for future study

[@dechusaquarium4268]

Here I am water changing koi carp but he still in dead .This corporation pipe they any problems for water any treatment

[@ivansyahrial3482]

What drugs thats used for treatment?, Can somebody tell me, i have a task to review this vidio

[@laylacastillo8586]

Is it possible for betta fish to suddenly get lice if there has been no exposure to anything new ?

[@damiendavisisraelcom8603]

Good job

[@Koisland]

Hi, nice video, I have a pond that is continuously feeded by natural water, so we started to see this unfriendly bugs (Argulus foliaceus)!, we continuously remove them manually from our koi fish, but it is a 15.000 litters pond, with around 70 koi fish in all sizes. Our weather is cold always, around 18-19c water temperature all day. Do you know if for example...Angel Fish can help us to fight them naturally? what we can do if not? Salt will help? Thanks

[@thefishdoctor8746]

Very good question. A couple of my fish keeper clients have described a loose symbiotic relationship (similar to the marine cleaner wrasses), between their small pond fish (e.g. rosy barb) and their koi, where the small fish pick of parasites from the large koi. These are observational anecdotes for the moment, and I've not come across scientific literature to back it up. I don't see why it shouldn't work, provided the parasites are easily visible and that the koi learn to stay still enough for the small fish to pick off the parasites. Lump suckers are used when salmon farming in some northern hemisphere farms. In the meantime, my advice is to find a veterinarian who can treat your pondfish, because they're real nasty bugs when numbers get out of hand.

[@its_yohohohoho]

hi i have a black colored fish which have skin . today i was watching my fish carefully then i noticed one of my fish is affected with white colored insects which is walking on his body . please tell me how to cure it . due to that insect my fish is also not eating for one week . hope you will reply very soon thank you

[@womblestacker7993]

What did you use where can I get that stuff from plz

[@mechanicalbees7698]

Dr. is good looking.

[@BrandonLee-ps6qe]

Doctor, Dimilin X is toxic for the fish ? You recomendated ?

[@elsonsti]

It's not . Dimilin is quite safe. You will need to over dose large amount to make it toxic to fish

[@MrJusduit]

I have a Marine Nasco Tang which shakes side to side. No scraping against anything lets say fish has protozoa what the best medication?

[@electricwater83]

I've subbed very informative channel

[@reeojuliantreyes7871]

Hi doctor.... Just wanna asked... I treated my koi but i found out that it is not the right medication. Can i shift to other medication anytime?

[@bhaskarakrishnasatyavarapu8657]

why do gold fish tails curled ,at the time when i bought they are straigt after some days they are getting curled what could be the exact cause and how to recover them to normal

[@CrazyFishFreak]

very informative. Definitely subscribing

[@duncanhill6854]

Would you be willing to do a video on camallanus? There isn't a lot of good quality information available on how to treat it effectively. I think it would help a lot of people!

[@thefishdoctor8746]

Similar treatment regimen as Pseudocapillaria, watch - kzbin.info/www/bejne/fnmtYaGBfrKpnMk

[@k24510]

How to cure blind eye problem for my flowerhorn fish.

[@motodrip1643]

This dude is awesome

[@archinmodi4575]

I have a golden fish. Fungus is on its side. When I put salt on it, it gets better for 1-2 days, but after 3 days it funges again. Do you help me?

[@ragecoder5351]

Oh so the fish I got got a crustacean thing that I don't know turns out its fish lice

[@sargemason574]

When is the best time to add Prazi Cura to my pond water in the Northeast?

[@LightYerPipe]

One dose of potassium permanganate would have cured the problem initially and then a second dose at the next life cycle of the the parasites.

[@elsonsti]

You can do this but you will need to feed antibiotic food as well because both fluke and trichodino presented in the water . Bacteria infection is highly likely to happen if you go with pp only. The pond has so much organic load , needs to be cleaned by PP every month at least

[@neptune4167]

How do you keep yourself from getting the heebie jeebies?

[@V1ralTik]

My koi fish back looks like it got sliced please help me

[@fredparis8125]

HI SIR CAN YOU MAKE A VIDEO ABOUT COLUMNARIS FOR GUPPY ETC TOO? THIS SICKNESS IS QUITE DEADLY NOW WILL BE NICE IF YOU CAN MAKE ONE VIDEO ABOUT THAT THANK

[@mirandap8466]

Can potassium permanganate be used for the trich?

[@cindygarraway3015]

Hi doc i hope you respond quickly i have a small koi about 3 inches it floating on its side the rest of fishes appear to be fine uts still breathing but very little movement help plz

[@lendonleechantv8760]

good day doc is amoxicillin anti bacterial can use to koi fish ?

[@vita2246]

Does anyone know if red eared sliders can be carriers of KHV? Most al my fish have died do i need to get rid of turtles before starting over?

[@kaputon1]

How con I fond a fish vet by me

[@deathproofduck6897]

fondle

[@MadCheshireHat]

Fishvets.org

[@jainztalks6170]

can you tell me the name of that medicine please?

[@arunagoudi298]

Sir!my orinda gold fish gave number of eggs.how to protect them from fungus and make them hatch?

[@angelayoung211]

My Koi and I have just moved to Florence Oregon and we do not have a fish doctor. How can I get meds for my fish without a vet? I need help!!!

[@thefishdoctor8746]

Try searching for one at this site - www.fishvets.org/tools/locator/locator.asp?id=30

[@abdulrazak-uv3tt]

Sir can suggest any book for the treatment of guppies and bettas

[@michaelknight6422]

I think my grandfathers 80ace lake has fish lice in it ive seen this on the fish

[@angiekelley9038]

In a situation of life or death good a human eat a koi fish?

[@HuN-Yavuz]

Hangi ilac kullandiniz

[@duncanhill6854]

Are the strains of Dactylogyridae and Gyrodactylidae that infect goldfish and koi also infectious to other species that are not cyprinids (carp)? For example will flukes from a goldfish infect live bearers or tetras and vice versa?

[@elsonsti]

Yes it will .

[@kothapalliharikrishna9324]

Hello sir can u suggest whis meducan use my flower horn peractial deceas pls can u help

[@edmundolumacadjr9364]

Is it possible for me to buy some medicine from you? Thanks.

[@hadeel4336]

I hope someone sees my coment and replies.. I have a comet goldfish and a translucent goldfish, this lice was on the second fish since I bought it. For 10 days, I quarantined this second fish, but today I moved her to the big aquarium with the other fish. After moving her, this lice removed itself from the fish and started swimming on its own (when I noticed, I removed it from the tank). My questions are: 1/Is it possible that the lice had breeded in the tank water? 2/ what is the cause for their existence in the tank? 3/ how to kill it without harming my fish? 4/ and what kind of fish is compatible with my two comets? Thank you.

[@elsonsti]

Buy dimilin. It's available in Amazon .And it is the medicine doctor uses in the video to kill off lice

[@LucyJazzy85]

@@elsonsti thank you for your brief and to the point reply… I kinda got lost watching the AR pond doc! 😂

[@Mrslltdvaxx03]

how can i treat a fungus and wound on my fish?

[@Davidj3]

I use pro form c

[@haroldpetiluna281]

I use methylene blue for my fungi infected fish namely my tetras they worked pretty well

[@waynewin4709]

Hi hi just looked at this video an say to my self need to know more about fish health. So i have a question Is it ok to treat your fishes even if you dont see they are looking sick or an parasite

[@lradmirer7838]

Too much of a good thing is a bad thing so just try to look for signs of diseases

[@lettucemayopickleketchup47]

hey dr richmond i have a perfectly healthy fish goldfish tank with a ruby mino 1 koi one guppy a mix tank and they have been dying recently here are some things ive noticed little lumps under the scales and one of them had little white lump took him out to look a white squishy ball slipped under a scale out fell back into water and they just turn white in like an hour i need ur advice respond to comment and ill give u any direct message software and i can give more details thanks i dont want them to die please help there only gold fish infected so far now i think multiple are infected now look stressed showing other signs ive looked not lice or anything just help thanks please like my comment guys so he can see it

[@thefishdoctor8746]

Please post pics/vids so i can see at tinyurl.com/thefishdoctor-facebook

[@karthikeyankallat3324]

How can I purchase tryclophone sir,is it available in Amazon

[@adv.c.rmuraleedharanpillai7796]

My water is greenish.Is that hooded?

[@danheath9223]

I have anchor worms in my 55 gallon freshwater tank. Also on my fish, I bought treatment that seems to have a small effect on the fish themselves. Any ideas how to get rid of them completely?

[@gorilladogmotherturtlebum769]

im having an anchor worm problem too, two baby koi fish have died from the anchor worms, how can i treat 50 thousand litre pond

[@huskayaken8252]

Uh.. Am I the only one, or are the lice pretty cute .-. Look a bit like stingrays

[@lindapindabelinda3570]

A warning about the dead fish in the video would be appreciated.

[@cobymayer8018]

Linda Deneher grow some skin

[@PrashantYadav-ce9hb]

Garlic paste help to remove lice from fish???

[@rossellis6484]

Good stuff

[@kanchakanchi3150]

Does it effect human, if swallowed by human accidently?

[@thefishdoctor8746]

Thankfully the lice, monogeneans and Trichodina do not affect humans.

[@dailynailzbyarjola6547]

Do the fishes die from these parasites, I just recognize one parasite at one of my gold fishies and I didn’t like it, I went right away to a fish store a got a treatment but I’m not sure what to do, should I take it of the body of the fish before I start the treatment or It will go away itself when I start the treatment, and does that effect the other fishes too ?! Pleas help me because I want to start the treatment ASAP

[@thefishdoctor8746]

Lice graze on amd damage fish skin, leaving the sores prone to secondary infections like bacterial diseases. Yes to treat, lice as explained in our video. but If there is one kind of parasite, there may be others. Best to examine for the presence of other possibilities before formulating a treatment plan.

[@dailynailzbyarjola6547]

@@thefishdoctor8746 Thanks

[@mustacheman_Dthakur]

@The Fish Doctor: Please share the medicine for Argulus Fish lice for 2.5 feet aquarium. we have 9 gold fish....please revert fast as fish are infected too much

[@josephboland4979]

I’m having a problem with some stickle back fish they seem to have a white lump on some of them do you know how to treat this ?

[@thefishdoctor8746]

To get a better idea of your problem, you may wish to post with pictures or videos in our VISITOR post section on our new Facebook page - tinyurl.com/thefishdoctor-facebook

[@YoutubeT-rex]

Dosage for 2ft to 3ft tanks

[@panduvenky4185]

Sir IAM in India prasent argulus was not control please some medicine tell me

[@patrickleeproperty]

Hi my arowana caught something like a chipped scale or fluke u call it may i know how do i treat it ?

[@thefishdoctor8746]

Please send photos by posting at tinyurl.com/thefishdoctor-facebook

[@jaerosongkip1998]

Doc. Is methylene blue can also be used as treatment for fish lice?

[@Jaker788]

Not a good treatment for inside an aquarium or pond as it'll kill your beneficial bacteria and stain everything blue, it'll also kill plants. You can give fish a bath in it, but that won't kill anything in the pond.

[@jessecook8876]

I love you thank you for telling me that my fish got mites

[@elsonsti]

I would do a several doses of pp after the treatment plan

[@cruiser84]

I wish I can drink that medicine. I feel i have the same parasite in my body.

[@Whaleydavey]

Won’t formalin affect the biofilter?

[@thefishdoctor8746]

Formalin does not affect the biofilter at therapeutic doses. In fact, the biofilter bacteria may break down and inactivate Formalin, using it as a carbon source.

[@Whaleydavey]

@@thefishdoctor8746 Thank you so much for letting me know.

[@wahyudiaugust3323]

Subtitle please

[@adv.c.rmuraleedharanpillai7796]

My water is greenish. Is that gooddd?

[@zygardiousyt9981]

I found these on a catfish in a lake.... Should I be worried???

[@md8421]

Yes very worried.

[@richardanderson3424]

One of my koi has a huge growth on it's face what do I do.

[@thefishdoctor8746]

To get a better idea of your problem, you may wish to post with pictures or videos in our VISITOR post section on our new Facebook page - tinyurl.com/thefishdoctor-facebook

[@deepakm3586]

Dr I bought methaline blue from lab How can I use that to cure my platinum koi red spot and how mch should i use

[@johnsilver9055]

One tablespoon for every 10 gallons