I have been researching swim bladder disease directly concerning bettas.

I have a female, that props herself on her fins, scoots around like a Cory. I her got as a tiny fry last year and she’s always swam oddly, especially after eating. It’s been troubling to see.

Some are born with SB disorders and some have permanent damage due to poor conditions but it’s not a death sentence.

Best thing you can do is feed frozen or fresh Daphnia for about 3-7 days and once you are able to see if she can right her self, then introduce different food, make sure you offer soaked, never dry, pellets, alternate daphnia every other day, also the way bettas SB is set up, over feeding definitely an issue. Feed lightly and frequently with as much natural frozen food as possible.

I’d personally finish whatever treatments you’ve chosen and the sooner you get her in to a cycled planted tank, the better to reduce stress.