Ok so my little silver dollar started to get really skinny so i put him in the 30 gallon convict fry tank. Next thing i know he is so close to dead he was sucked up next to the filter. So i only had a 2.5 gallon for himself so i put him in there and he barely started to swim.I added melafix, pimafix, and aquarium salt and he seems to be doing much better.He wont eat and is getting fin rot BAD anything else i should do? He is swimming around fine now but is very skinny and the fin rot is scaring me. Thanks in advance for any help.