About a month and a half ago I purchased this koran angel. About a week after I got it it's fin got kinda rough with a couple of tears, and a kind of rash appeared behind his fin. for the most part it is kind of whiteish, and every so often it would look irritated. I kept observing the fish, and there was no scratching, heavy breathing, or bad eating habits. In fact the fin is back together in full working order.
However, I noticed today that there was like a bit of a blister filled with
water that kinda shows up and dissapears every so often. the area isnt raised or anything. I also noticed that it seems like it might be peeling on that spot (hopefully the new skin is coming through.) I feel that it is healing well, but I just want to be sure. I was wondering if any of you guys could look at this photo and at least give me an idea of what it is if anything.
Thanks for any comments or advice in advance.
~mike
However, I noticed today that there was like a bit of a blister filled with
water that kinda shows up and dissapears every so often. the area isnt raised or anything. I also noticed that it seems like it might be peeling on that spot (hopefully the new skin is coming through.) I feel that it is healing well, but I just want to be sure. I was wondering if any of you guys could look at this photo and at least give me an idea of what it is if anything.

Thanks for any comments or advice in advance.
~mike