I noticed a slight bloating in my betta's body a couple days ago. It's swimming around fine, and fast. He has also been eating really well. I don't know if I should be worried about the bloating or not, it's right where his front fins are.
Hi did you happen to notice this thread Answer as many questions as you can I am sure someone will be along shortly that has more experience than I do. Bloat in any species is very dangerous. Have you fasted your Betta at all? Also, if you can post a photo I imagine that would be very helpful.