yes mamape but i use co2 i have trhee fan , 5 light hps 600 w one extractor temprature at 27 28 and humidity 60 70 max perfect phj for the nutrients that i use (6.3) all is perfect since from the start and over all this stuff i have 300 clone's of northen light and l.a. How much you think is The maximum yield for my grow...???