I have a 36G planted community tank with pressurized CO2, EI and a dual bulb T5HO (24 watt each) 20" from the substrate, one of the bulbs being rosette. One of my high light plants is being shaded too much by my floating plants, which removing them is out of the question. Is there a small, suction cup type spotlight that will provide more light just for this one grouping of stem plant? (Ludwigia Glandulosa)