Saw a tank photo where they had netting for most of the top, but eggcrate in the very back as a strip for HOB stuff. Looked pretty darn slick.
I'm wondering if I can use my hinged glass hood for the front third, mesh for the next third or so, and a thin strip of eggcrate in the back of mine. Not sure how to anchor the glass hinge to the screen edging, though. Or if it's worth it to do that instead of a strip of removable eggcrate/mesh for feeding & cleaning while leaving most of the top undisturbed.