I replied to your other post about interest in the tank a couple of months down the road. I actually have a 75g reef ready sitting in my garage. No sump but it's got an external return pump, cal reactor, hood with 2x250w halides, 2x24" actinics, ballasts, and a chiller. Let me know if you are interested in just buying it from me and if everything works out I can buy your 180 from you when the time comes