Ok i would like to start a grow my cabinent will be 3'6''h x 20''d x 20''w using a 400 watt HPS growing 4-6 plants at a time. The questions i have is can i use the HPS light threw the whole grow and get the same yeild if i would of used a CFL for vegging and HPS for flowering?

Is mylar very effective compared to white paint?

Can i water the plants with tap water or should i use a water with the proper PH level?

Is 2 intake fans, one blowing on the plants and one blowing on the light, and one exhast fan be enough to keep a good tempature?
pow420 Reviewed by pow420 on . newb with some questions Ok i would like to start a grow my cabinent will be 3'6''h x 20''d x 20''w using a 400 watt HPS growing 4-6 plants at a time. The questions i have is can i use the HPS light threw the whole grow and get the same yeild if i would of used a CFL for vegging and HPS for flowering? Is mylar very effective compared to white paint? Can i water the plants with tap water or should i use a water with the proper PH level? Is 2 intake fans, one blowing on the plants and one blowing on the light, Rating: 5