Thanks. This fish is very skittish so dabbing it with a swab is not an option, but i appreciate it. I think my best option is going to be to get a small "hospital tank" going for it.
I'm sure i can get some sort of genereal anti bacterial/fungal medication. do I need to isolate this fish or is it okay to treat the entire aquarium it is in? It's a 10 gallon (38 Litres) if that matters. other tank mates are 1 Molly, 2 octocinclus, 1 corydora and 1 golden mystery snail.
Looking for a suggestion of what could be going on with this Platy. large white area in front of dorsal fin. no other signs of anything goign on with other fish in the tank, and no odd behavior seen as of yet. First noticed a small spot there about 2 weeks ago, it has gotten bigger since. It...