Quote Originally Posted by khyberkitsune
I'd personally stick with the MH all the way through. That's just me, though.
In my opinion that's a really bad idea. Mh doesn't give off the proper spectrum of light that the plant needs in flower. When flowering the plants need more of a red spectrum and mh provides a more blue spectrum of light. Mh is great for veg and keeps your internodal length short. I would use the mh for the first two weeks of flower then switch to an hps. That is the way all the pro growers do it and I would recommend that way myself. It is possible to veg with hps and I've done it but I wouldn't flower with mh.