I was wondering what a good medication for treating mouth fungus on a blue ram and dropsy in small tetras in a community tank containing several species of Apistos. The tank is heavily planted 75 gallons, 0-nitrates, nitrites, ammonia, phosphates. pH-6.8 . I am mostly worried about the apistos being sensitive to any medications. I am afraid the unknown bacteria is in the tank so I need to treat the whole tank. I have small tetras, apistos and small algae eaters. Has anyone used Melafix with apistos. Thanks