I have 2 five gallon tanks and the fish now are all catching ICK, I have been treating them with Wardley essentials Ick Away, but dont know if this will do the job, I heard you can use canning salt but am not sure how much to use. Also it says to remove any carbon from the filtration, does that mean turn off the filter or what? Anyone else have any suggestion of what I should do? I have neon tetras, a bala shark, glofish, goldfish, pink kissing guaramis, sunset platies, and other guaramis.