If you'd like a multicolored tank with interesting, but little fish in it you can take into account a school of Mosquito Chili Rasboras. I might say this kind of Betta is a little harder to maintain due to the fragile crownlike fin texture. Also called ‘twig catfish’ this strange-hunting https://biggestaquariumshopsmalaysia.blogspot.com/2025/02/4-hacks-to-maintain-your-kintons.html