That works but if you are using some fluorescents or CFL then there is no harm in leaving the light on 24/7 for this cycle

But that's just how I do it.

With the logic being when the seeds pop out of the ground I want it to have light not dark to start with.
Zandor Reviewed by Zandor on . CAN SOMEONE HELP ME PLEASE Hi once my seed has cracked and i put it in the soil how long should I leave the light on i know for the vegg and flowering but not for the stage before the vegg. I hope you can help me i'm new at this first time grower. Rating: 5