3 or 4 flowering females is plenty....for first grows, using 400 watt. IMO.

yes ...you need very good ventilation, too. You can veg several more plants (10?)...and toss out the males later, plus any weak sisters..:thumbsup:..before it gets too crowded...during 12/12.
Dutch Pimp Reviewed by Dutch Pimp on . Optimal # of plants for a 400w HPS/MH light I just purchased this light on ebay for 200. I was wondering if anyone can tell me how many plants i should try and grow for optimal production with this type of light. I want quality over quanity to maximize my yields. Would 6 plants be to much? Rating: 5