Uploading pics from the iPhone is impossible lol how much longer til I should transplant into a bigger pot?
If the pic in the second post is yours, it technically is not root binding. When roots are bound, they stop growing. It is ready to transplant now. Clones can be planted as soon as they have roots.
This is from seed. Also yes it is rockwool. How much longer do you think I could keep it in their until it stops growing?