I keep seedlings in a propagation tray for about 1 week before moving to DWC buckets. Once there are some roots popping out of the rockwool or whatever you use, I transplant to DWC and the roots explode into the water. If you are using hydroton you probably want to wait 2 weeks and root growth will be slower.
I keep seedlings in a propagation tray for about 1 week before moving to DWC buckets. Once there are some roots popping out of the rockwool or whatever you use, I transplant to DWC and the roots explode into the water. If you are using hydroton you probably want to wait 2 weeks and root growth will be slower.