My Dojo fish is sick floating on the top of the tank and barely moving. I test the tank and didn't see any bad water conditions and the fish not gasping. All the other fish in the tanks look fin. I did start adding minerals to my fish tank because I use reverse osmosis water.
I have moved the dojo into the hospital tank and used API MelaFix. I really don't know how to treat a dojo fish but I do know you can't use salt. Can I use Kordon Methylene Blue to do a fish bath? I use this on my goldfish all the time and it's a lifesaver. but I feel this fish might also be too far gone.