I am going to be upgrading from a 65g to a 125g in the next few months. I am wondering if a 72" 3X150W MH light would be enough for a 125g? I am not really into SPS so that is not a concern. On my 65g I run a 36" Current USA Sunpod with 2X150 MH during the winter and it is a great light(Well to me anyways). Heat is no longer an issue in the summer as the basement(where the tank is) is now AC'd.