Over the years, I did several mods to my biocube hoods. I had a 75w Metal Halide on top of my 14g Nano cube, but at first I didnt have the lid on. The fixture had a bracket that hung on the back. After several carpet surfers, I opted to modify the hood to make it work. I gutted all of the components from the hood and cut a rectangle on the top of the lid for the halide fixture to fit. The first version worked well for a while, but the heat started to be a problem. I solved that by putting the bigger fans in the hood. That tank grew into a 29g Biocube and i bought a 150w halide to go with it. I opted to leave some of the power compacts and cut the hole in the center of the lid placing the halide on a bracket. I added a couple more fans and cleaned it all up. Worked great for about 2 years, with the only downside being the excess heat and subsequent evaporation. When I moved into my current house, I opted to change over the LEDs and bought a custom LED kit and retrofitted it in a new biocube 29 hood that I found on ebay for 30 bucks. The reduction in heat was amazing and I would do it all over again!! I still have that LED setup in the hood, but now ive upgraded tanks again.
