I plan to use 1x2's for the canopy frame, sitting on top of the glass, connected at each corner. What are the best screws/nails to use and what kind of glue? Gorilla etc. Also where shall I place the uprights? On top of the bottom 1x2's or just inside each corner and then attaching to the bottom and top frame? The 2nd way seems sturdier but the weight will be totally on the fasteners. This may not be a problem since the top will be open. Tank is a 6x2x2' 180. Thanks in advance.