If I may, I'd like to be so nosey as to ask what your panels are on the wall? I'm assuming they monitor stuff, but what exactly I was curious about. I'm not 100% sure how the whole monitor/probe thing works. By the way, nice reactor! I should be in the market for one this summer/fall...do let us know if you like it.
125 gallon saltwater: 55gal sump, 4 Blue-Green Chromis, Purple Tang, True Perc, Firefish, Royal Gramma, 5 Ricordea, Bubble Coral, 15 Pulsing Xenia, Green Star Polyps, Deresa clam, Green-Tip Torch Coral (about 11 "heads"!), Orange Montipora Cap, Purple M. Digitata, Green Slimer Acro. Yongei, 3 Orange M. Digitata, Pink&Green Acro. Millepora