Alright so I just started growing about a week and a half ago. I started with a long pot and I recently moved the plants into individual solo cups with holes in the bottom. I have about 18 plants or so. They are under florescent lights and they are now growing their second set of leaves as you can see in the pictures I attached. So I'm wondering: When do I switch the lighting to 18/6. They have been on 24 hour light since they were planted.... So like a week and a half. thanks!