I've recently come into possession of a used aquarium; while it includes all the basic parts (tank, stand, hood, and canopy), the glass canopy was dropped at some point and a chunk is missing out of the corner.
The tank is a 60 gallon setup, but the measurements are different from what I've seen for other 60 gallon tanks; I attempted to purchase a replacement canopy yesterday at the same chain pet store where the aquarium was originally purchased, but that canopy (sold as 30", physically measuring just over 29" in actual width) is about 1/4" too long to fit this tank.
The tank itself measures just barely under 30" across and about 17 7/8" deep (measuring the glass, not the rim at the top). The opening measured up about 28 3/4" across and 16 3/4" deep; obviously space will need to be left for the filters at the back, so the canopy itself would not cover the full depth.
I haven't had much luck trying to find a canopy at this very slightly smaller-than-standard size so far, so I'm looking for what my other options may be to cover this tank. As it will be a cold-water planted tank for axolotls, I'd like to know what I can purchase or create that would work for the intended setup.
How can I best cover an oddly sized tank with a broken canopy?