I know all this I've read that thread before. I just found out they actually make cubes that fit the hugos in and the caps and clips mount to it. That's what I was looking for I just didn't know they made them. And they keep improving the design every year. It's a bit harder growing from seed with drip irrigation as diffrent plants drink diffrent amounts and dialing in each plants drippers take time. I'm gonna use the rockwool for my clones at another grow I'm setting up at a diffrent location. I'm also buying some coco mats to set them on. Right now growing in coco and rockwool in the same grow gets harder and harder with this many plants. Using photo Clones will eliminate alot of the factors. Thanks for the info man o green.