I concur. That stuff is awesome. I have been using it for my girlfriends freshwater puffer. Adding a bit to the water and the food and things are MUCH better. No ick in about two weeks i guess. Now we also used a "reef-safe" medication.. its supposed to be copper free and im sure that helped a great deal also. If copper is supposed to melt snails to sludge, then this stuff is definitely copper free as the snails are all over the place in the tank. The puffer snacks on them when they get too close to her cave. But back on topic.. Kent Garlic Extreme rocks