i have fed them frozen bloodworms, zoom zoom spit them out. i posted a message on the forums, then i joined a second fish site. i posted anoyher message on it. this site is mainly for betas, the other site has many species.
I'm sorry, I don't know anything about tetras. You could post the question in the forum. I'm sure someone here will be able to tell you about treating SBD in them..... For Bettas though, yes, Epsom salt would help. You could also feed live or frozen foods, such as daphia or mosquito larvae.
I believe Zoom-Zoom has swim bladder. Since he shares his tank with another tetra, I cupped him in a bete cup with water with prime Seachem and a third tsp. ES. One of my betas had swim bladder, so I know what to look for. Do you treat tetras and betas wi th swim bladder the same?