cybersymes said:
i get condensation between my glass and the backing...
velcro will be just the ticket...
I find the condensation helps the backing adhere better to the glass, making it more visible from the frontside. I suppose that might encourage mildew or something, but I'll see when my newbieness wears off a bit. I may end up needing to change the backing every so often, but that actually sounds like fun -- what an easy way to change the look of a tank, don't even need to get wet hands!!
I also found that the backing was able to be cut to exactly the right size to have the top and bottom edges slip underneath the trim around the top and bottom of the tank, and I just needed a bit of tape on the left and right to prevent curling. Of course, I've got a cheapo tank whose trim is black plastic, so maybe that wouldn't work for most people.