Okay I decided to start another tank. The last SW setup I did was about 5 years ago. I now have only a 10 gal FW tank going for the kids. I want a nice one for me! I am going to get a drilled 55 gal and use the 55 I have now as a sump. This will make a total volume of 110 gal. I have a RO/DI unit, 125/day 6 stage. I have 600 lbs or aragonite sand to use. I will not use all of it but that is the total I have on hand. I plan on 75 lbs of LR to start. I have the protein skimmer and plan on purchasing heaters, lts and a pump. I plan on using 2 24" twin flouresent strips for lighting. How many watts of heat will I need. I am not sure if 1 300 watt heater will be enough for 110 gals of water. The setup will be in my basement. It can get cold in the winter down there. Now the pump. Do I need to turn over the tank 5-10 times per hour or the whole 110 gal volume? I was looking at the mag 9.5 with a head of 3'(850gph). The drilled 55 comes with a overflow rated at 600 gph. Is this going to be enough flow? Thanks for the gread advice.