im actually looking for the same answer, my plant is about 3 inches ... lol. i have just recently put it on 18/6 ... and was wondering if this is too soon, or just right? +rep for any and all advice. thank you!
the reason i ask is because i had my light at 3 feet while they were sprouting, and im tryin to figure out a good time to lower the light, since they were getting pretty leggy