i have a 10" managuense in a 55 gallon tank and it has these white im guessing parasites of some sort. its not ich and doesnt seem to be affecting the fish, but id like to get rid of them. they are very tiny and appear to congregate mostly on a plastic log that has some algae on it. i have aquarium salted the tank, tried melafix/pimafix for a week and recently tried mardel coppersafe. anyone got any suggestions on how to get rid of them?