Percula clown with fin problem

[jtumbleweed]

I have a amphiprion percula clown that I have had for over a year now. About two days ago all the sudden I noticed its right fin had little bubbles in the skin all over it and the fish isn't using the fin to swim. The fins coloration looks muted it looks a little ragged.

The clown hosts a large euphyllia hammer coral and spends all it's time in the tentacles. I haven't added anything to tank besides a few snails and an emerald crab in a long time. I keep mainly SPS coral, and my water parameters are very good, with nitrate >5 ppm, phosphate >5, nitrite 0, so on. I do a 15 gallon water change every week with water from my RO unit and seachem reef salt. The tank is 40 gallons with a HOB 5 gallon refugium by CPR with macro algae, live rock, and a DSB.

I can't imagine water quality being the issue here, and all the other fish are peaceful and have all been together for over a year now. I vary the feedings between regular frozen mysis, PE frozen mysis, and spectrum pellets, and I haven't bought any new food in months. Anyone know anything about this? The fish is still a hog for food and does everything it normally does, looks and acts fine otherwise. I will get pictures when the lights come on later today.

 

[jtumbleweed]

anyone?

 

[screwsloose]

are there any other fish in the tank?

 

[jtumbleweed]

Yes, all the fish have been together for over a year now. 1 six line wrasse, 1 coral beauty angel, 2 pj cardinals, one yellow coral goby, 1scooter blenny, and one yasha hase goby. Today the fin looks like the bubble-ish lesions have ruptured and it looks more tattered, but the fish seems to be using the fin more today.

 

[screwsloose]

i was researching alittle for you and came a cross a viral infection that may fit the bill. search for lymphocystis and see if that helps.

 

[jtumbleweed]

thanks a lot for the help it is much appreciated. I will read up on lymphocystis and see what i can do. thanks again.