From the research I've done, vegging with hps leads to taller plants with fewer leaves, and Metal Halide will produce a shorter plant with more leaves.
I plan on doing a grow soon, but starting with a 400w MH for veg then switch to 400w HPS for flower. You can use both bulbs on the same...
Although I'm new to the forums, I have been in the hobby of saltwater reef-keeping for over 2 years. I have a tank with many different types of corals - each has specific levels of lighting needs. I have a 4 bulb T5 HO light unit that is 156 watts total. The amount of heat this unit puts out...
I live in southern CA, looking forward to prop 19 voting this November. Recent survey's indicate a close divide, but it seems like it will pass.
There are many mj forums that I've been looking around in, and I like how respectful you guys are here... or maybe I've just seen the nicer posts lol...