ahh so you gonna run the Ebb & Grow system. I have that running downstairs atm hehe. Most important thing bout that so far is make sure the controller box and your buckets are all at the same height (if 1 is on floor then all on floor, if 1 on milk crate ... so on), the rez can be wherever but buckets and controller have to be level with each other for proper fill/drain without putting your nutes and ph water on the floor