Are you talking about how they keep pacman frogs on foam? I have seen pics of it, but that's about it. Currently, i have a rubber banded frog (casanova), a white's tree frog (the prophet), and 2 red eyed tree frogs (jake and elwood). I'm currently building a 125 g paludarium for darts and then onto a 40b for fbt's. I need more tanks.....lol