I noticed yesterday that one of my Bleeding heart tetra's has a small white spot on its tail. I've seen ich before and it looked like sharp white spots, and had a very mild case of fungus in a goldfish tank a year ago which looked like a "fuzzier" whit spot on the fins and body. I cant tell on this fish if its one or the other its larger than a usual ich spot but it is noticable, but slightly on the fuzzy side. Is there a definate way to tell? No other fish have any other spots on them. Can both be cured with a salt method?