betta problems with fin rot

[auburn]

I'd recommend looking into either getting a new filter that's more suitable for your betta's needs, or taking a simpler approach by placing a small piece of sponge over the intake. You could also use panty hose as a makeshift prefilter, it's a pretty common solution.

I thought it was something really bad, his insides coming out or something.

[SeaBidder]

Is it protruding from his anus? If so, it's likely a prolapse, which is a serious condition. You can give it some time and see if it retracts on its own, but unfortunately, that's rarely the case.

[auburn]

I'm not sure, but it seems attached near his fins and it's really affecting his swimming. It's all tangled up in his fins underneath, which is concerning.

[SeaBidder]

I've had my betta for over a week now and he's taken a real liking to the left side of the tank, near the inlet filter. He seems to enjoy swimming around that area, but I've noticed he often gets stuck to the inlet. I'm a bit concerned - is this something I should be worried about, or is it just his thing?

Can you get a clearer pic for me? I'm not convinced it's a tumor, not with it moving around like that and getting tangled in his fins.