Oldmac, I miss you guys! I hope I'll be having more time to check in soon.

Yeah, when you're ready to put the cubes in a bed, take the plastic or paper entirely off to improve air penetration to the roots.
stinkyattic Reviewed by stinkyattic on . Question about Rockwool. I'm doing a 4x4 tray ebb and flow 600 w hps. My question is I currently have the plants 4inch rockwool that's it. Is this okay? Once the plants get bigger I will use a trellis to support them. My main concern is the root system, will I need to put something underneath the rockwool, or can I keep as it is? I've researched it quite a bit and I've noticed tons of different answers. I'm trying to build a consensus. Thanks! Rating: 5