Will the growth rate on plants using a 15 watt bulb (3" away from water surface) with a water depth of 3" similar to a PC (3" away from water surface) with a water depth of 18"?
To control the variables, the growing point we are looking at is right at the bottom depth and not near the water surface.
To control the variables, the growing point we are looking at is right at the bottom depth and not near the water surface.