Oh my god- surely you can't be serious Plants exhibit traits called tropisms geotropisms are the tendencies of a plant to grow upwards away from the ground.Phototropism is the tendency for a plant to grow toward the light-no light,no upward growth, pretty simple huh? The best flourescents are two tube 80 watt 4 ft flourescents 18 watts might get them started but that is it.Flourescents will only grow wispy runny buds.It takes an HID to get compact solid flowers.