Sativa,

I have grown in the past (indoors) and have had the best luck with both halides and HPS running at the same time, one HPS in the middle and halides spaced evenly around the HPS..... one thing that I will say is that if you are going to grow indoors use CO2 injection... unbelievable results, you can actually watch your plants grow. There are many cost effective ways to harness CO2 for your plants... GLTY
mikee1422 Reviewed by mikee1422 on . Metal Halide or HP Sodium? I have tried a metal halide lamp for the first time recently, and didnt think that it gave me as good results as my previous choice of bulb (HPS). I heard that MH were better for vegative growth, and to swap to HPS for flowering, is this true?? Any advice would be most welcome! cheers. Rating: 5