Hi. 15 gallon tank and one 2-3 year old glo tetra. Sheís a survivor. But she has this big growth in back seems to be getting worse by day. Itís generally whitish/gray, and Itís now got what look like vessels on it.
Been treating with Melafix but itís getting worse. Any ideas? Thanks in advance. Water parameters ok. Ammonia is a little high but thatís been normal here forever.