Infected Coradion Butterfly

[betam]

My Coradion butterflies have come down with a strange looking disease. As you can see in the pictures, it has a strange whitish patch/growth on its body. Hasn't responded to Cupramine at Therapeutic levels. Appetite has gone down and it's not actively feeding.
Any help with the diagnosis and possible cure. Thanks.

 

[Jay Hemdal Verified Community Expert]

Welcome to Reef2Reef!

That is very clearly Lymphocystis, a common, non fatal viral disease of marine fish. The fish not eating is caused by something else. Do you know where it was collected? Cupramine can be kind of harsh on some fish, do you know the current concentration of it?

Are you sure it is a Coradion butterfly? It looks more like a Parachaetodon ocellatus to me. These can be more difficult to get to feed well.

Jay

 

[vetteguy53081]

Agree on Parachaetodon and as with butterfliy group, susceptible to lympho which is viral, a condition- not disease

 

[MnFish1]

Welcome to Reef2Reef!

That is very clearly Lymphocystis, a common, non fatal viral disease of marine fish. The fish not eating is caused by something else. Do you know where it was collected? Cupramine can be kind of harsh on some fish, do you know the current concentration of it?

Are you sure it is a Coradion butterfly? It looks more like a Parachaetodon ocellatus to me. These can be more difficult to get to feed well.

Jay

+1 I was going to mention the fish also looks thin.

 

[betam]

Welcome to Reef2Reef!

That is very clearly Lymphocystis, a common, non fatal viral disease of marine fish. The fish not eating is caused by something else. Do you know where it was collected? Cupramine can be kind of harsh on some fish, do you know the current concentration of it?

Are you sure it is a Coradion butterfly? It looks more like a Parachaetodon ocellatus to me. These can be more difficult to get to feed well.

Jay

Thanks for your diagnosis Jay. Where I live (India) most of the imports come from Indonesia but I'm not sure of where this specific originated from.
They were voracious feeders of my homemade recipe (a mix of clams/mussels/squid/prawn/nori) before it went off food. It does still eat a bit of frozen mysis.
Cu concentration is around .50 ppm per the Hanna high range checker.

 

[betam]

Agree on Parachaetodon and as with butterfliy group, susceptible to lympho which is viral, a condition- not disease

Thanks for the ID