I just noticed small white spots on my Royals fins, so far don't seen anything on his body, just the tail and dorsal fin. They seem to be really small. All the other fish seem fine, even the royal seems to be acting normal. They are so small it's hard to tell if they are "cottoney" looking? Does this sound like fin fungus? If so how should I treat it? It's in the comunity tank and I have a baby Dat in there thats doing great, and a couple pleco fry as well.