We must still be separated by a common language then cuz I don't quite understand your pics.
Whats the white stuff, and the neoprene collars are left on what? I see seedlings in the white stuff, but not the collars. Are you saying you start the seeds in the collars then move them to the white stuff?
JG
The "whte stuff" is a Sure to Grow cube.
You start in the STG cube and grow to seedling. When the seedling is large enough - you put a neoprene collar around the main stalk and carry on. The plant never leaves the STG cube once it starts there.