Tropical fish rolling around tank instead of swimming?

Question

I have a sail-fin molly and a few mornings ago she started doing torpedo rolls around the tank and cant swim I have put her in a hospital tank and added aquarium salt. what causes this and how should I treat her.

Thankyou

Answer 1

She might b sick. Take her to the vet or u could call a fish store and ask. <3

Answer 2

swim bladder problem

http://www.angelfire.com/blues/fish_prob...