Hello this is my first post. I have 1 8" p. Senegalus, 1 14" p. Delhzi, 1 8" electric catfish, 2 18" fw moray eels, 1 10" fw lionfish, trispinos, tons of community catfish and live-bearers. My eels and fw lion stays in 1.008 sg brackish tank with lots of feeder black molies. I have problems with my newcommer eel and lionfish (actually toadfish). Eel has white slime coating on it, probably because of staying in fresh water for a long time. Toadfish has a fungal looking patch on the upper area of one its gills. But it is not white as the fresh water fungus it's in a greenish yellow color. Can anybody advice me some threatment for those problems? Thanks already..