I would say probably that would not be enough light for all your plants if you used only the 70 watt. Especially if you started out with 7 at the beggining, 70 would not do those plants justice at all.
rnf232s Reviewed by rnf232s on . just starting some new ice seeds waiting for them to arrive through the post + plan to buy a 400 hps light will this be good enuff for veg and flowering stages. ALso does the flowering stage require even more light to get good blooms Out of ten seeds I hope 7 to grow. Out of the 7, I hope to have 2-3 females maybe 3-4 alowing for 1-2 to die. I hopefully will have some good results with the hps!!!!!!!!!! Rating: 5