Hello, I have a 4 inch 3 bar datnoid in my 90 gallon tank the last month and he seems to be doing good , lives with a Pakistani loach, a small blood parrot and a medium sized angel fish, anyways I notcied his fins over the last 2 weeks starting to deteriorate abit ( other fish’s fins were fine), at first I thought maybe someone in the tank was nipping at the fins but now that I have a closer look it seems to be more of a deterioration at a very slow process even though the fish seems healthy and is active as usual, I did a large water change this week and I’m looking to but some medication to treat the tank but I’m wondering what to treat with? Is it fin rot or something else?
