2 of my cardinal tetras have whitespot..i can not move them to the hospital tank as that has 2 other fish being treated with internal bacteria meds...i have interpet whitespot meds...the other fish in my tank are as stated in my sig....a DISCUS, cardinal tetras,glolight tetras, dwarf gourami, peacock gobies, polka dot botia and shrimp is it ok to add this medicane or should i use another method..my tank temp is at 84F at the moment