I still have 2 empty tanks!! What to do??

[Richer]

I may just have a glass top for you then. I have a sliding glass top that I used on my old 15 gallon tank (same top dimension as your 20 gallon) that I switched onto my 20gal bowfront which I have in storage. Let me take some measurements to double check. If it checks out, you can have it for 5 bucks. If you're handy with a glass cutter, I also have a couple of fold-up glass lids for 30 gallon tanks (dimension 36"x12") that you can have for 10 bucks each.

-Rich