I got it from a guy I work with, he was just going to throw it away so I figured I'd try fixing it. He dropped it and now its a little messed up. Its acrylic/plexiglass don't know what the difference is. Its cracked in a few spots and I want to reinforce it. The overflow has a chip off of it too and I want to repair that also. What should I use to reinforce it? More plexi? And what can I glue it with? Is aquarium silicone good?