Help, Should i stART to force flower????

hey, so this is the same plant from the last post... the topping idea worked great and now our plants look beautiful... well except for the widow... I'm posting a pic too of the widow, but we think it's a boy (MOTHER%$@#er) anyway, we were just wondering when we should start to force flower... it's already like 2 and a half months old. growing very slowly. but that was attributed to not enough light although we have roughly 320 watts plus another 60 watt incandescent. any suggestions would be much appreciated. but we don't have the funds to purchase a new light. so, if you have any suggestions that could help us out with what we've got... any way, peek away these are our babies

ps... the little ones the widow, we just topped her today.

muchos gracias.

you can start a 12/12 from seed if you want, get a few grams... most common force flowering growers wait until the plant is 8 to 12 inches.

What are you using for the 320 watts? And lose the incandescent, it's a very inefficient light, and puts out too much heat for the little good it does.