Yep, i found out that if you get it to a specific moistness, it sorta sticks to glass. Just get some, add just enough water to it so when you pick it up and moderately squeeze it, a few drops of extra water come out. Then break it up and lay it flat on your palm or fingers and pat it down on the glass. making the bottom of the wall thicker and more compressed gives it more stability so when the frogs jump on the sides they don't make the whole wall collapse.