2 platy fish, 1 green swordfish, one frog, 4 danio and an algae eater,2 neons,1 grey molly,2 pregnant guppies,1 black swordtail,1 bronze catfishand its a 20 gal.no fuzz and no frayed fins, shes acting normal and shes eating. i just wanted to make sure this isnt something that can kill my fish. i...