sickly koi need help asap

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Neervana

Neervana

Fire Eel
MFK Member
Feb 11, 2008
1,319
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UK
me and my partner have rehomed some koi from a couple who kept them in a dirty pond, these koi are very sickly and have fleas. can see loads and loads of eggs. can someone please tell me how i should get treat them? also remember we're in the uk so we might not have the meds available that you guys suggest. but just need to know what we should be doing and how to go about this.

edit: just wanted to add they are 18" long. very fat and big.
 
I'm guessing that these fleas are some type of parasite and if so you should be able to find a good med for that over there.I like copper based meds for parasites,that's what I use to condition my feeders.You must have a nice sized pond.
 
Hmmm..Are these argulus to be more precise, Neer? Dimilin or trichlorfon are your best choice of treatments. I am not sure you can get these easily? If you wish to use Interpet, please email them first for the ingredients. If you have their response, please do post here so it can serve as a good reference for future Interpet users.:) Some ingredients the Interpet uses are lethal to fish so care must be taken when you administer them.
 
someone from a discus forum has advised us to start treatment with potassium permanganate which can be lethal to fish when over dosed but we measured it out very carefully and are keeping a close eye on the koi. we've diagnosed them as fleas - argulus. they are really big, i can actually see them crawling all over the koi and they've already laid hundrerds of yellow eggs in lines all over the tank on one side, which are also visible. so the first dose went in a few hours ago, we've also got some hydrogen peroxide that will enable us to stop the treatment asap if the koi look like they arent doing so well. the argulus look like they are half a cm in size, and transparent in colour. the koi came in with ulcers which were quiet big in size, but the ulcers are healing up nicely now.
 
oh and i think the treatment's you've mentioned arent legal here, luppy. so thats why its taking us a bit long to get the proper treatment for them. anyway what do you think about the pp we've managed to get?
 
ive used PP before in our koi pond. it is very effective, ive even used it directly on the fish to treat wounds/ulcers, just dab it on with a cotton swab.

as for what youre describing, it sounds like fish louse. maybe its what Lupin is talking about, not sure. does it looks like this? some koi i bought a while back had these, i just pulled them off with tweezers :D

large_16112008094128_127.jpg
 
^ I had one of those on my Florida Gar when I brought it home. Had to take the little bugger off with tweezers.
 
jcardona1;3681188; said:
ive used PP before in our koi pond. it is very effective, ive even used it directly on the fish to treat wounds/ulcers, just dab it on with a cotton swab.

as for what youre describing, it sounds like fish louse. maybe its what Lupin is talking about, not sure. does it looks like this? some koi i bought a while back had these, i just pulled them off with tweezers :D
Click to expand...

yes!! this is it, but how many did you have on your fish? cos the tank they are in have LOADS and so many eggs too. its gonna take us forever to pull them off one by one. i think treatment is needed to just get rid of them.
 
Jcardona is right. I was talking about that particular pest. My choice of treatment is either dimilin or trichlorfon. Trichlorfon is a dangerous chemical though. I have a feeling UK would not allow circulation of this chemical. Dimilin inhibits their growth and it can seep through their shell by destroying it and penetrating their innards thus killing them in the process.

I've pried off a lot of fish lice with my goldfish before. Not a pleasant experience and black goldfish make it worse because I can barely see fish lice scuttling around fin bases and gill areas trying to shield themselves from being found and removed with tweezers. The only reason adults are removed is they require high concentrations of chemicals in order to be eradicated. The meds will have to focus on the emerging juveniles.
 
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