So, I have decided that i am going to use some type of HID system for my terrarium. It is big, 4ft x 3ft x 2.5ft, and is lit with fluoros. I figured that a 250watt bulb should be enough light, but I was wondering which type of bulb to get- MH or HPS? Metal halide was my first choice since it is best for vegetative growth, although HPS bulbs last long and you get more lumens per watt(I think). Any opinions?Thanks,
David
David