thanks Ken! yeah, can you believe the glass was drilled incorrectly?!?! I was able to make a waterfall but I had to alter the false bottom. Hey, a questions for you or anyone who has a 2 cents: I'm siliconing the Cork Bark to the glass back and I don't find it easy to get good contact due to the irregular shape. Anyone have suggestions on a good way to get bark attached more securely? Or do I not have to worry about it too much as long as it doesn't fall down? And do I have to make sure that the false bottom is such that the frogs can't not get under it?