growing romaine lettuce indoors
I have a 250 watt metal halide bulb over an area of 2' x 3'. I've got romaine lettuce started in this grow area, but want to get some feedback. It works out to 42 watts per square foot, is that too much for lettuce? Not enough? Just right? Also, I've heard different things about the hours of daylight/ darkness that is ideal for lettuce, any advice? Anybody with experience growing romaine indoors (or any onther kinds of lettuce), their feedback would be much appreciated!