and also, if you need to, you can clip a fan on the rim of the tank to blow cooler air across the water to help control the heat that could be absorbed by the water. i think that you have made a good choice in lighting. with the halides, as mentioned above, you will be able to keep anything you want, anywhere in the tank. the halides leave no area that you can not keep SPS corals at. i run them and have a couple of
acropora corals on the sand bed.
