I have a 6.5x6.5x6.5 tent. I currently have 2x 600w cool tubes. what would be the approiate uc setup for the equipment listed? also if i was too add more lights what is the biggest system i could put in this tent?
That chart is too large for your tent. Two answers. UC6 with 18" centers, 8 gal buckets and 2" manifolds or a UC4XL, 25" centers, 8 gal/2". Less plants, bigger trees. The latter would love those twin 600's. Actually, either one would. UC6 is 32"x77" and UC4XL is 39"x65". No more lights required for that tent. The two systems listed are the largest, unless you customize the epicenter outside the tent, but that's another thread.