I sure wish there was more information available about which marine organisms are killed by this product. Looking at the MSDS for the active ingredient, DIMETHYLIMINOETHYLENE DICHLORIDE, ETHOXYLATE, it says "harmful to marine organisms," and "ecotoxin." What does that mean? I just wish there were more info. on how the product works in our reefs.
Mind you, if I had a horrible infestation I would probably just do it and hope for the best (or else break down the tank and replace all the rock). But for the level of problem I have, the unknowns make me a bit nervous....