Do you know how thick the glass is? That answer will most likely dictate you path forward (anything <3/8" would be unacceptable unless it is acrylic).
75g FW Planted Community; 55g African Cichlid
29g Biocube SW Reef;12g AP Mantis Shrimp/Brittle Star
2 Cats, 2 Dogs, 5 Turtles