Ok today the temp rose to 84 degrees. The only heat producing items in the tank were the skimmer pump and the mag 9.5 return pump. I turned off the halides right away which are ~12 inches above the water and left the vhos on. The ac is set at 77. I also added a 9" fan to the bottom of the stand to cool the sump area. I was wondering what everyone else did as my temp stayed around 83-82 degrees and I would like it to be cooler. I am wondering if I mount a fan or two pointing down to the tank would help as that is about the only way I could mount one with my light rack.