Thanks for all the great suggestions Zack. Unfortunately the cube is gone. To curb my craving to have beautiful corals in the house once again, I will be setting up just a 15 gallon breeder tank with dimensions of 24x12x12. I definitely want to have the option of dimming and do preferrer a more blue 20k look. Not sure if I will us optics as the tank is a bit shallow, I want to avoid spot lighting, and will be keeping low light creatures.