i have my tougth some breed are exagerated like bubble eyes but thing like orandar and rykuins are fine to me but yes i se there are a lot of problems with gold fish wen so i personally dont keep gold fish with wen
i havent had wild bettas but have good experience with foods feed them freezedried tubifex and daphnia and some pellets that should get them nice and fat
i am doing blood worms and there are pretty simple put like a bucket and ut leaves with water let them desintegrate then pass it to a tank with mesh and put some live blooodworms