I have some sprouts that are just getting their third set of leaves (White Rhino, El Nino, Sensi Star,Lemon Skunk,, Afgan Kush, Himalaya Gold, Cheese, Big Bang, Belladonna, Alaskan Ice under four T-5 bulbs.
I am growing in rockwool, daytime temperature 76-78 at plant level (at level of plant-...