First day with the MH, and man it raised my temp to 84F! Looks like I'm going to have to figure out a way to lift them above the water and put fans across the surface. A chiller is out of the question, way too much money.
Does anyone see a problem with creating two lifts with 2x4's which will sit at each end of the light? It would be totally stable and, niether would be near a bulb. I'm going to keep the MH's off until I get this figured out and get my hands on some fans.