so I have 4 fish 2 blackmoors, 1 Oranda, and a common in a 55 gallon tank. Today my oldest the black moor started pooping and it was huge pale brown I would say about 1.5 tblspoons literally more than they poop in 2 weeks all together I noti fed that she has white spots on her fin idk what to do. I've tried quarantine with Pima and mele fix and the powder green stuff separate times and neither works.the green stuff actually made her eyes swell up and got infected might I add I was listening to a private fish store Rep when I did the treatment never again. I also put salt aquarium salt in the water I'm scared she might not make it thru the night after that poop I mean I don't think I would. Help please