I'd have to say....... um, 18/6 veg. 12/12 flower.It won't hurt the seedling to have 24 hours.You need to keep the light as close as you can so they won't stretch.

Ga Grown!
GaGrown Reviewed by GaGrown on . Whats the Best LIGHT CYCLE??? um..i am debating on wether or not to keep my seedlings under 24 hrs of light. I am not sure which is better 24 hrs or 18 on and 6 off etc..Can someone let me know which one they think works best to achieve fastest growth? THanx!! Rating: 5