I just noticed my Bowfin is absolutely infested with argulus (fish lice, not ich). My Lungfish also has a few, what can I to go about medicating this? They share the tank with my Florida & Shortnose Gars, which are not affected at the moment. I am assuming the source of the parasite is feeder goldfish. I am scared of what to do to medicate as I know primitive fish are more sensitive to a lot of major fish medications.