I feel like an idiot but I can't figure out how these legs work! I have a 15-inch Blaster light and the legs, that I want to use with a 10-gallon Dennerle Nano Cube. I just cannot for the life of me, figure out how the legs sit on the tank and the light sits on the legs. Does anyone have a photo? (Giving 5 stars anyway - plus the plants in this shipment were AMAZING.)