Just follow the directions and use it once. Turn off your skimmer though!! Trust me on that. You will see the slime turn grey the next day and start to piece off, give it a couple days, maybe a week. I doubt you'll have to dose it again but atleast give it a week before you do. Good luck and let us know! _________ 125 Gal Reef. Born March 2002 FISH: Ocellaris Clown, Yellow Tang, Fairy Wrasse, Sand Star, Fuzzy Dwarf Lion, Mandarin Dragonette, Hippo Tang CORALS: Green Striped/Red/Purple Mushrooms, Green Star Polyps, Yellow Toadstool Leather, Bubble, Frogspawn, 2 Hammers, Yellow Polyps, Open Brain, Ridge Leather, Various Zoas, Button Polyps, Kenya Tree, Colt, Elephant Ear Mushroom, Clove Polyps, Torch, Purple Clam, Rose BTA  | 
