Rockwool Germination Question (when to introduce light) +rep

InsaneInTheBrain

Active Member
3/4 kandy kush (and both freebies) have sprouted and I can see the cotyledon leaves.

They don't have true leaves yet... Can I give them light or should I wait until they show the first set of true leaves before trying to start photosynthesis? (I've seen plenty of references to both...one of them is already about 2-2.5" tall...).

Germination was started 3.5 days ago. Transferred to rockwool 2.5 days ago.

+rep for experienced growers.
 
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