Dwarf Gourami paralyzed?
Last week I lost a paradise fish to some sort of aggression and then infection that I thought could be dropsy. I euthanized him, and the other fish in my tank seem ok, except one dwarf gourami. He swims but can't use his caudal fin. It's almost like he is paralyzed in his tail. I have been hand feeding him but I an concerned that this is an internal infection and that he will spread to the other fish in my tank.
Have you ever seen a paralyzed fish? Should I separate him from the tank?