A few days ago I found this bump on my betta. It seems to be under his skin, not a sore or anything. I've done a little bit of research, and it's sounding like a tumor.
His tank mates are African Dwarf Frogs and Cory Catfish. I also have a lot of live plants.
Is there a way to treat for a tumor, if it is in fact a tumor, that won't harm his tank mates?
Some research has shown that there is no treatment, and he'll probably live a few unhappy months, unless I hit him with a hammer. (Yes, somebody said to hit the fish with a hammer or run him over to put him out of his misery. I CANNOT do this.)
So, does anyone else believe it is a tumor, or have any other more hopeful ideas?