What should I do? I have had an ich outbreak before in a completely cycled tank and I only had to treat one fish. I have aquarium salt and malachite green ich treatment. I am already raising the temperature of the tank but i dont know what to do from there. I'm scared of adding the salt in too fast and killing all the fish, along with the ich treatment messing up my tank. I was thinking of a salt dip but over half my fish are infected.