Rockwool for Veg

Hi everyone,

I want to vegg in 4" rockwool, what happens when the roots stick out of the bottom of the rockwool? Do they just sit on the plastic I have the rockwool on, wouldnt that harm them?

I do not want to stack cubes, or use any other medium. Just the 4" rockwool.

I will move them into an NFT tray after a 30 day veg.

Is this possible? Or would I be better of using a 6" cube? 6" is more space, and i dont have much of that.

As always cheers a lot

i dont think that is enought you will need pots because the roots will poke out and i read that light hurts the roots

Light and air will damage your roots. At the very least use bigger rockwool cubes.

if your roots start to come out of the rockwool they will get air pruned .

i have a 19inch tall clone in a 3x3 cube. the only ballache is i have to water it daily. i have vegged and flowered using this 3x3 grodan cube to see if it can be done AND IT CAN.


J

I use 6x6 Rockwool by itself and have no problems. Start to finish.
No slabs , no stacking , no hydroton.