one of my dwarf African aquatic frogs have white stuff on it's eyes. I have fish in the tank too. the tank is a 65 gallon 3ft tank. It is 24 inches tall. it is 18 inches in depth. Will this desise hurt fish? Should I use quick cure? i had columnaris like a month ago. In my big tank like a month ago. PLEASE HELP!!!!!! Is it columnaris????