So think I have decided to go with 2x kessil ap700 and 6x 54 watt T5HO. I have most of the parts necessary to do a retrofit for the t5
I'm a big proponent of Kessil illumination but I think you're going to be extremely disappointed in the long run if you choose this setup. The AP700 is not capable of illuminating a 36" wide tank unless it is mounted perpendicular to the length of said tank, this is not debatable, it is fact. If you turn the lights 90° to accommodate this deficiency, they will not cover the length either. Two AP700s are a waste of money, I'm going to strongly suggest you find another way to illuminate this tank because this isn't the way to go about it.