I'd suggest slowing down just a bit. I don't know if you were given the frag or bought it to put in the tank, but it's a little early for stocking the tank. Generally let the tank with live rock and sand cycle four to six weeks. Since you already have the polyps, hold what you've got. Start testing the water for ammonia, nitrite, and nitrate. don't change your water until the ammonia spikes and then goes back down to zero. It is also reccommended that you don't use any additives or buffers until your tank is cycled. When you do get to the point that you are ready for water changes, I would recommend using only RO/DI water from a LFS or a buddy with an RO/DI unit. I would not suggest buying distilled water at the grocery store because it is rummored to be an inferior product. There are some good beginer articles on here. I'd read up a bit. This is a great hobby and once things start to click you'll be hooked. Good luck!
