Who Gives A Fish Forums

I've got a 40 gallon too, and my Betta is the star. Yeah, I know they're usually solo, but mine's chill with neon tetras and corys. Just gotta pick the right Betta and tankmates. No fin nippers, obviously.

I appreciate your understanding regarding any spelling or grammar errors I may make.

I've had my betta for about a year now. Recently, I noticed a lump on his side, which has since turned into an open sore. After doing some research, I'm fairly certain it's an ulcer or abscess. I performed a water ...