We have discovered ich in our 800 gallon pond. We have goldfish and I managed to net some of them to put them into a hospital tank. Unfortunately there are a few remaining in the pond that have become very adept at hiding.

We want to treat the ich however we do not want to harm the frogs, tadpoles, snails, and all the critters in the pond. I see Kordon has a "natural" ich treatment labeled "Ich-Attack."

Has anyone tried this? It seems like everything I look at causes harm to invertebrates, plants, etc.