you say on top of hydrton how high do you fill with hydroton and then how high up the RW cube do you flood? how often? I got a dozen clones in oasis waiting to go into the same set upi used rock wool starter cubes then went to 3" rock wool cubes set on top of hydroton in an ebb&flo system and had no problems.............................
not too sure about how well the coco would do in a flood and drain... think jiffy in hydroton, ebb and flow would do well??
I let my RW grain out and I squeeze out the excess water by pinching the little cubes.
I have a new outdoor grow planned out in an ebb and flow system, based on the two tub system in the FAQ. I plan to fill the top tray with either hygromite, hydroton, or gravel, foregoing the 6 planters shown in the FAQ.
What I'm trying to decide now...
A-Which should I start the seeds in?
B-Transplant directly to grow medium, or into larger rockwool cubes and then to the medium?
C-Do rapid rooters and/or oasis cubes transplant easily into the larger rockwool cubes?
As a side question, what is a watering schedule like for each type?
check out suretogrow if you want to get fancy.