Originally Posted by Olympia
It's possible... People get tumors (cancer) from bad water. Do you live in a house with lead pipes possibly?
Posted via Mobile Device
I do not, but it has happen to most of my fish that I had when living in Canton, MI. I now live in Grand Haven and the pet store betta I have now has a tumor on his right eye. Its not pop-eye. I was treating it for that, but no luck and it just keeps getting bigger and bigger to where his eye in no longer attached and he is blind in that eye now :(
As of right now, he is still eating and flaring at himself, but he is not swimming all that well. Its like the growth is keeping him afloat.