When do I transplant to hydro from rockwool?

[grimes2020]

Hi i have a Atari Wilma 20x6L Hydroponic Grow

I have germinated the seeds in rockwool in a rockwool tray and have grown roughly 3 inchs tall now.

so I know i need to put the rockwool cube into a load of clay pebbles but i did it last time and the stem was too weak and the pebbles damaged and killed the plants because they where too weak

when shall i put the rockwool cubes with the seedlings in into the pots of clay pebbles in the wilma 20x6


i feel if i do it now it will be too soon and the clay pebbles will damage the stem while the plants in early growth... because when i did it before the stem was damaged by the pebbles and the stem went thin and either snapped or the plant fell over

when shall i put them into the pots so they can grow strong but still not get root bound into the rockwool cube?


I hope that message didnt sound confusing....

 

[DukeO]

I have just let the root grow to about 3" and fish 1" through the bottom of the net pot and gently pour in the pellets.

I am using DWC so for the first few days I will dip and pour some of the water over the pellets twice a day for the first few days.

Or what I like even better now. Is to take it at three days after it popped and put the cube into a little basket in my spray cloner until I get a 6" root. Then I feed 2" through the net pot so it can reach the water and the roots are tougher by then and I have not had any issue with them while putting in the pellets.

 

[tucker99]

I'm a newb and learning as well. Sounds like an awful amount of handling. Why not germinate in paper towel then gently place in a soaked rock wool cube? Not sure why you're damaging the roots with the hydroton grimes. I would just remove the top 1" of balls, place the cube in the middle and build the balls around it, not on top of it. If DWC I would raise the level to about 1/2 way up the net pots to keep the hydroton wet and wait for the tap root to stretch down and lower the level accordingly. Is my method flawed?