I know you are the leading expert on algae scrubbers SantaMonica and your advice has always helped me. I'm still trying to find a good way to mount all four light strips on the same side but why do you think his setup worked? Mine is built exactly the same way the only differences are he has a 220g tank, 550gph pump on scrubber, lights on 12hrs a day vs. 75g tank, 800gph pump on scrubber, lights on 22hrs a day