And that my friend may be the real problem in recurring ick outbreaks. Let me give you my own take on feeding with supplementation and its effect on ick. First as we all know ick has to be introduced into the tank, it does not just manifest itself on its own. More fish are prone to ick then others and their slime coat or lack of it is definitely a reason. Now once the ick parasite is introduced into our tank and appears in its parasitic stage the hobbyist starts to feed enriched food. The food is bolstering the immune system of the infected fish improving the slime coat. When the ick parasite falls off the fish to continue its life cycle the fish continues to improve its immune system. When ick is in its stage to find a host there is a chance that it will only minimally infect the now health fish and this minimal infestation may go unnoticed. This pattern can go on until a serious out brake takes place. With all the ick remedies on the market I have yet to see a company manufacturing supplements claim they will kill ick. (I only wish it would it would be a reef safe cure). My bottom line is simply while supplements may hold ick in a tolerable state in our tanks it is not eliminating it. As witnessed by the many threads stating that people have not introduced anything new in their tanks but have an outbreak, feed their fish medicated food and the ick “goes away”