Hello...I'm a newbie betta fish owner and I've had my little guy now for almost a year. He's in a 5-gallon filtered and heated tank (80 degrees). He gets 25-50% water changes (using water conditioner) once a week or so.
My question is this...recently I have noticed a bump on his left side. It's right in the middle so it doesn't look like his swim bladder. I fasted him for a couple of days and have been doing 50% water changes every other day. He's still very active and is eating normally. I have a feeling it's a tumor but I wanted to see if perhaps I'm wrong and there's an actual treatment that will make this go away. Please, any help will be appreciated.
My question is this...recently I have noticed a bump on his left side. It's right in the middle so it doesn't look like his swim bladder. I fasted him for a couple of days and have been doing 50% water changes every other day. He's still very active and is eating normally. I have a feeling it's a tumor but I wanted to see if perhaps I'm wrong and there's an actual treatment that will make this go away. Please, any help will be appreciated.