How much temps did you loose by switching to the ai prime? I'm having trouble with my tank getting to hot so I put a fan on it and it gets about a gallon of Evap a day
I kept my tank at 80° F (with standard Biocube lights and lid). I took the lid off when I got the AI prime and noticed that my heater had to work more to keep 80. After reading about reef tank temps, I have turn my heater down and now I'm maintaining 77° F (sometimes 76). I had almost no evaporation with the Biocube lid installed (well, it condensed on the lid and ran back into the tank) ... but after I took the lid off and mounted the AI Prime, I'm at a half gallon every day (granted, it is summer and the AC is on). There is an AC vent near (relatively) my tank and that could be helping with the temp.