Pink Lesions on Koi - Help

[koisplash]

I apologize, if this is not the best place for my question,
my two koi which are about 6" have pink lesions one has it on its head and gill cover and the other under the pectoral fin which looks like a pink pancake and a blob top of the tail fin which is hard rubbery to touch. I keep them in the aquarium since moving them from the pond for the winter, they have had these lesions when they were moved inside.

I 've tried salting to 0.65% and salt dips, and using other treatments one with formaldehyde the other with tea oil as active ingredients without much success. The water temperature is 72 degrees which should be good for healing carp pox type of ailments. I'm not sure what these lesions could be, they seem to be quite resistant, my next guess is maybe they are Lymphocystis >> treatment: Acriflaven.

I know its hard to make possible diagnosis with limited information such as the above (i'll try to get pictures) but what would be your guesses as to what it could be and possible treatments.
The fish seem fine but it doesn't look pretty the lesions.

thank you

zee

[Russell Peters]

Quote: Originally Posted by koisplash I apologize, if this is not the best place for my question, my two koi which are about 6" have pink lesions one has it on its head and gill cover and the other under the pectoral fin which looks like a pink pancake and a blob top of the tail fin which is hard rubbery to touch. I keep them in the aquarium since moving them from the pond for the winter, they have had these lesions when they were moved inside. I 've tried salting to 0.65% and salt dips, and using other treatments one with formaldehyde the other with tea oil as active ingredients without much success. The water temperature is 72 degrees which should be good for healing carp pox type of ailments. I'm not sure what these lesions could be, they seem to be quite resistant, my next guess is maybe they are Lymphocystis >> treatment: Acriflaven. I know its hard to make possible diagnosis with limited information such as the above (i'll try to get pictures) but what would be your guesses as to what it could be and possible treatments. The fish seem fine but it doesn't look pretty the lesions. thank you zee

Pictures would help. Don't apologize, this is a great place to ask these questions.

[RookieKoiGuy]

You will need to post pictures...
.65% salt is very high.

Tom

[Russell Peters]

Quote: Originally Posted by RookieKoiGuy .65% salt is very high. Tom

Naahhhh!!!!!!!!!.............. I do .7% regularly for treating new shipments.

[RookieKoiGuy]

Quote: Originally Posted by Russell Peters Naahhhh!!!!!!!!!.............. I do .7% regularly for treating new shipments.

If you can get them to live in 1.3% you could sell them as saltwater fish

Tom

[Russell Peters]

Quote: Originally Posted by RookieKoiGuy If you can get them to live in 1.3% you could sell them as saltwater fish Tom

Yeah but..........saltwater fish are harder to keep.

[KoiCop]

koisplash . . .

Here's a primer on using salt: The where, when, why and how.

Salt . . .

The bottom line is that salt should be treated like a medicine and only used as and when needed.

Since salting at those high levels hasn't helped, and could interfere with meds you might need to use, I'd drop the level to .1% or less -- and look to find out what's caused the lesions.

Here is an excellent site for koi health issues:

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[koisplash]

Okay i took some pictures today, hopefully they are clear enough for you to see what im talking about, have you seen anything like this before ??? thanks alot




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ive treated similar tail fungus above with melafix or salt on another fish before and the fungus just disintegrated nicely, but this one doesn't want to go away.

[koisplash]

just a bump...

[JasPR]

the second fish * the yamabuki, yellow fish, has carp pox. It is harmless and will go away on its own once the fish acclimate to 78 F water. The first fish may have carp pox or just slime coat lifting. This will also clear up on it's own. I would watch these fish for signs of flashing ( that is when they rub themselves on the gravel or a rock) as this will be a sign of parasites). The likely parasite is chilodonella. If you see no sign of this behavior, just keep the fish warm ( not too warm, 78 F is perfect) and keep the water and filters clean. JR