Hey everyone, I just got my new 26cube (20x20x20) up and running today. I am going to start a progress thread as soon as I can. I broke down my old sps tank and I have most of the equip. left. Here's what I had in mind: I will use a single 400w 14k in a horizontal pendant with an open top, and I will cool the water with a 1/4horse drop-in chiller. Both of which I already have. I am not too concerned with this amount of light because I ran the same thing before with excellent results, what concerns me is the size of the chiller. If I have the temp. differential set at 1deg, I think the temp will go up and down to quickly. What I mean is the light will heat the water up quickly, and due to the size of the chiller, it will cool the water very quickly as well. If the temp. differential is set at 2deg, the temp. swing would be too great in too short of a time period. Any suggestions? An option I will consider is a chiller trade with a 1/10 Arctica or ? I am trying to avoid having to buy new equipment...I mean I am trying to avoid a divorce! Waddya think?