Not sure what you're using for filtration, but I suggest getting a decent canister filter if you're going to go with a water setup. I personally find water to be an excellent substrate, but it DOES require a little more funding in order to keep it safe. They foul the water out pretty fast, and cleaning out the enclosure all the time gets old FAST! I was using a whisper filter at first, and that thing was useless...I then tried a Zoomed 501, which was pretty crappy as well(might work for smaller animals). Then to a Zoomed 511 which also was ****(again depending on the size of the animal you might have different results). I eventually opted for a Fluval 205, and I gotta say its amazing! Water is crystal clear, and is very quiet. Pricey? Very much so. Luckily my G/f's brother works at petsmart, and I got it for 92 dollars out the door. But totally worth it if you don't want to deal with the hassle of changing water all the time, or cleaning your filter...When my girl poops I don't even know most of the time. There will be traces of it on the bottom of the tank, but it usually gets broken up and is gone before I know it was there. If you can save your money and get something decent for your frog, you won't regret it. Good luck with your setup.