- hI all! I registered because I was freaking out about my fish! My lyrtail had a lump form in her middle, then another started growing much faster near her head (its only been growing two days). I looked at all the forums and everyone was like “idk, maybe someone else does...” every time! Most useless response ever! Any way I found out what it is! Idk if they are the solid or viral, but either way I think I have to flush her before it spreads Tropical Fish Disease Identification with pictures and cures.