how close is the light when it's pointed at the plants? the way that bulb focuses the light i can't see how you would get adequate coverage of all the plants without unless you kept it 6+ inches away. those plants want more light. think of the plants collectively as a single canopy. floro light should be within 2 or 3 inches of every one of those plants. i'd suggest getting some extra cfls or tubes and arrange them so every peice of green is within a few inches of some light.