[KathyC]

I too have been pondering a solution to this...as the wrasse made another successful leap...this time onto the floor & now my Gramma has joined in on the craze....

HD carries the sceen framing kits (might be difficult to find this time of year), and they are very simple to work with. They are hollow and don't take a large amount of stress, but don't spontaneously bend either.

JH's point regarding feeding needs consideration and I'm thinking about using lightweight SS hinges and making the entire first 6" accessible as I have a few corals that require target feeding. Undecided to make that panel an additional screen or plexi. Since my tank is not RR, I'll have to notch a piece of plexi around those first to create a lip for this to sit on.

Regarding the netting..I looked at the links and it is identical to fruit tree neting/pond netting only the color is different. Mine is black & available at most garden centers.
I'd also like to find one with 1/4" spacing as the wrasse came right up through the egg crate I have on there now (NOW I have fiberglass screening over the egg crate...) so I remain concerned about the 1/2" spacing.
Could possibly run 2 layers in the meantime.