It will go fine, but be ready to get stressed out. There is nothing like dumping toxic pesticides into the tank you have been developing for a time. I had been collecting acropora for 5 years and have some pretty nice ones. Talk about paranoid when my crabs started to die. If you can catch them and put them in a safe tank for the treatment period that would be cool. I beleive it took a little over a month to do the 3 treatments on the tank. Calculate the dosage a few times before doing it. At the correct dosage it will work great! Good luck.