I am using two gen2s, They are set around 90 percent a foot or so off the water line. I did this over a couple of weeks so take your time. I would start around 50 with the corals on the bottom and go up from there.
Tank Update:i bought 2 fancy clowns. 1 gladiator and 1premium snowflake from a sea and reef vendor at palooza.Unfortunately the gladiator clown (i should have known by the name haha) has been beating the heck out of the snowflake to the point where the snowflake wont move from his corner not even to eat. i threw him in my refuge for now to try and power feed him get him some size and try it again otherwise im going to have some clowns for sale pretty soon :/