Currently I am setting up a 120 with a 75 gal sump.. It has 2 400 watt MH, 2 175 watt MH and 4 110 watt VHOs.. The current temp stays around 83 I was wanting to put a chiller on it.. But they are so expensive.. But I found a used 1/4 HP Via Aqua chiller.. for about 160 dollars.. Does any one...