I don't think rapid rooters are for transplanting in to. They are for starting in.

And the best way? The best way would be to not use rockwool, but other than that, just stick em in the middle.
Opie Yutts Reviewed by Opie Yutts on . How long to Bubble-Clone for?? I am currently using a black bucket to bubble 8 clones, with 2 air stones in the bottom. I am wondering, 5 of the clones have about five 1 inch roots started on each of them,and I am wondering how many more days I should bubble them for?? I want to transplant them into 4 inch rockwool cubes, can anyone give me any advice? Rating: 5