I have 5 green tree frogs and 1 brown toad originally from Panama City Beach with an additional 2 toads from Fort Dix, NJ. I am currently building my own custom made vivarium 30x18x18 combined with a small tank built within for beta fish. I would like some opinions or advise on how to be able to create a waterfall that will be able to flow in and out of the beta tank. If you like you can visit my facebook page to view the vivarium in progress look at the album titled of Frogs & Toads. I am listed as Jose Antonio Falcon.