My tank size is an 85 hex and I am using RO/DI water for top offs. I currently have two 1200 maxi power jets, metal halide(125/150 watts), wet dry system and about 40lbs. of live rock. Also, I have a little giant pump and a protein skimmer. Don't remember the name of the skimmer. I do know it starts with the letter R and have about four letters in it. I'm only using at the present time 20lbs. of aragonite reef sand. I'm using oceanic salt. I do have 5 snails that took care of my Diatom algae problem. So, this is pretty much what I have at the present time. I'm a new hobbyist that don't know too much about the fish world, but love salt water aquariums. So, if the maast crew can deal with my immaturity I will greatly appreciate it.