I posted a topic about a fish with a really big lumb of the side of him people said he had a tumor and would not last that long. He lasted longer than we thought and has seemed that the lump has slowly got bigger. Could this be a tumor or is it possibly pregnant?? It does not seem to discomfort the fish in anyway and has no problems in the tank with feeding etc. It is a syno catfish. Also the lump is soft to the touch