So my arowana has this strange fungus like growth on its mouth. This wasn't there yesterday? What's the preferred method of treatment? I already bumped the temperature up to 85 degrees and have changed out 300 gallons of water daily for the past 2 days. Treated the tank with a teaspoon of epsom salt per 5 gallons. Tank is a 380 gallon with a 150 gallon sump that is filled with live plants and bioballs. I also am loosing my temensis bass to some kind of fungal infection. Looked great for the first 3 days, then a little white started showing up around the edges of the fins and on the eyes. The next day the whole fish was covered in thick white string. Now he is barely breathing, floating upside down, isolated in a 40 gallon breeder. No obvious damage from fish on either of the fish showing symptoms. Nitrate is less than 15ppm, no nitrite or ammonia. Tankmates include a Dorado, a kelberi bass, a Nile bichir, a clown knife, 2 koi, 3 gar, a tarpon, a wallago leeri, a channel catfish, and 5 crayfish who never got eaten. Water looks cloudy in the picture because I'm halfway done with my 300 gallon water change for the day.
