I have a lollipop tang and this morning I noticed that he was not using one of his pectoral fins. It seems to be swollen at the base and the fin is slightly whiteish instead of clear like the other one.
The tank has been up and running for almost a year and I have had him the entire time. water quality is perfect and all the other fish are doing fine. Other then this one fin everything looks awesome. The only change has been the recent loss of a green chromis. I had lost one and replaced it with a few others and have since lost them to that wound thing that chromis get for some reason. But no one else has another problems.
Any ideas on what it is or what I can do for him.
He is a very active fish and the only thing I can think of is the possiblity that he banged it while swimming with one of the other fish but I am still uncertain. Oh and just so you know it is a 90 gal
with a porc puffer, lunare wrasse, fire clown, filefish, regal angel, hawkfish and 2 chromis.