[jks1]

Clint,
Congrats on the new tank. I also run a 210g. Mine is 84x24x24 with dual overflow.

I run 3 x 400W XM 10Ks with no actinics and a moonlight. Like Curt said this will create a lot of heat. The difference in the tank temp with lights on vice off is 4-5 degrees. I installed three fans in the hood and added a 1/5 HP chiller (which is undersized I know), and manage to keep the temps from 78 in the AM to 80.5 or so in mid-day.

For a skimmer I run an Aqua C EV180 with a 5qt auto whaste container. It is drived by a dedicated MAG 7 and I am very happy with it.

I have MRC Calc reactor which keeps Ca and ALK in line. I run a Mag 24 as a return and another MAG24 on a closed loop. I will be adding two 1" sea swirls soon to create more random flow.

I couldnt bear to go BB, so I went with 1" of fine sand around the rock formations. I placed only a dusting under the rocks and it seems to work well. I started the tank on MAR 24th and am now only dealing with very minor cyano on the sand but it will go away in time. I will take an updated shot when I get home today. You can find pics of the hood/equipment in my gallery. HTH and good luck!!!