Quote Originally Posted by SittinStoney420
Hey everyone,

I started out the ladies, on 18/6 under a 400w HPS for veg. The thing is they started to flower after vegging for around 45 days. My buddy told me that the reason theyre starting to flower is because i should be using The 400w Metal Halide Bulb for Vegging, And The 400w HPS for flowering. So, first of all i was wondering if this was true. Second of all if it is true, is it safe to switch my ladies from an HPS, to Metal Halide bulb or should i just leave them under the HPS and not worry about it. By the way im NEVER trying to flower these girl they are strickly to be used as mother plants. Any input would be greatly appreciated.

Thanks in advance

SittinStoney
Metal Halide provides blue spectral energy required for vegetative growth. It is better to use MH in vegetative stage than HPS... but 18/6 under HPS is O.K for vegetative growth as well. What strain are you growing?
If you want to keep those girls as mother plants, you should use MH.