Initial Plans for Canopy

[TheIceberg]

I wanted to build a canopy that would cover both the main tank and the refugium I plan to build and put behind the main tank. So the canopy would have to be at two different levels since obviously the refugium behind the main tank has to be higher in order that it can gravity feed the main tank. I will be attaching the lights to the top of the canopy which will be a hinged lid. I plan on building it out of a relatively thick black ABS (like what most like boxes are made of), because I like it better than wood and it is cheaper and more durable. I sketched out a preliminary drawing. Please let me know if you see any issues that might arise.