Ok... so regarding the exo terra background.... I REALLY want to try it. I know many of you advise against it, but I just can't help myself lol. I bought an 18x18 sheet, and glad I did! Measured, it's 17x17. So the 12x18 would have likely left gaps only adding to the FF issue. Further, it has those gaps for the cords to hide behind, which I imagine is another source of the issue.... so I cut those off flush and made the back as flat as I possibly could.... talk about a back ache! There are also notches out of one end for the cords to come out the bottom... I am actually thinking about turning it on it's side and using that side to do my trim to fit the tank. I am going to cut slightly large and try to really wedge it in there, and maybe block off the top with some moss or something to even further discourage the FF's..... I am sure some will find their way back there. It's a given, but I hope to minimize it at least. Luckily for me my frog already knows when feeding time is and comes out of hiding, waits for me to dump them in and goes to town so not many spread very far anyway.
Like I said, I appreciate the advice you all give, and I know you said not to use it, but I might try once I see how it fits in there. Please don't take that to mean I don't value you opinions/help and please keep helping me rofl.