Questions from a fellow grower:
During seed germination stage and seedling stage, before vegetative stage happens. What sort of bulb would be ok to use. I have my metal halide and hps. But during seed germination and seedling what bulb would be ok.
Also how important is warmth??? During the time the lamps are off? Where i am it could get to 6 degrees Celsius - please google for conversion. Would that be ok during the time the lamps are off? Or should i invest in an oil heater and have that on just to take the chill off? This will evaporate more moisture and water from the plant i think.