i have some fungus (at least i think it is) growing on driftwood, and around the roots of my bolbitis (attached to driftwood). it looks like white hair or fluff. a guy at my lfs suggested using maroxy, so i started that last night. my red tail shark, who just came out of hiding, has a white patch on his side where it looks like he's lost some scales (dont know how it happened) and i want to treat him with melafix. is it ok to treat both at the same time?