Good afternoon all!

I was working on the background for a 10 gallon converted experiment tank when the foam completely lifted off of the glass. It came off of the sides and back in one big piece. I cleaned the glass prior to adding foam and the temps were in the mid 70's. I didn't silicone the glass prior to adding the foam just like the other three tanks I've built, and they're all holding up fine.

Has this happened to anybody else? Any suggestions for me?

FYI.... I thought I may be able to silicone it back onto the tank, but the background has shrunk too much to attempt it.

Thanks for any help and/or suggestions

-AV