I have a great piece of driftwood, not large or heavy (3/4 lb.) that I bought at a Daytona Reptile Show last August. It has been cut and now has an evenly flat rear surface area about the size of a hamburger patty. I tried epoxy with no success, and I don't think silicone will work either, but I have not made an attempt yet. I have not filled up my tank with water yet, so the glass is completely dry. Can I attach this driftwood to the rear wall of my glass aquarium ? Is it possible ?