Hey op! I just wanted to say this more as a generalized warning/cautionary!

It looks like your lovely lady is a *double tail* betta. These guys are very very beautiful but can have a number of gut and swimming problems. Whatever you put in here with them should be as peaceable and non-fighty/nippy as possible (khuli loaches is my first thought)

I would definitely recommend some research on double tails beyond this because this is just what i know and i have avoided buying one because predicting the gut problems can be real hit or miss.

Sometimes they're fine and have normal betta lives and sometimes they just uhh... don't.

AGAIN! Lovely lady! Hope she lives the longest most beautiful life!