This is weird. I just noticed that my ADF has a swollen and red arm. The rest of him looks fine, and he's acting normal. Water tests are fine. Any ideas?
A arm do you mean a fin, if it's swollen and red can you issolate the fish, need to no tank size what fish and which type, and can you post water stats in ammonia,nitrite,nitrate,and ph.
I had the same problem with an acf (inflamed looking leg) unfortunately he died before I could determine what was wrong with him, as I was clueless about frogs at the time. Hopefully someone can help you out. Goodluck!