I agree with Rob....you can't really get better lighting using the same hood without some sort of modifications. One place I would definately check out though is nanotuners.com. They have DIY lighting kits just for the Biocube......and they even make a kit to put a metal halide light in the stock hood. I actually ordered an upgrade kit for my 12 gallon nanocube, which adds an extra 24 watt compact fluorescent bulb to the stock hood, and it came with very detailed instructions w/pics to help you install it.