Hi! I got a hand-me-down tank that looks about the dimensions of a 20 gallon long aquarium. I'm not sure if it is intended to be an aquarium or terrarium, but I'm considering putting my beloved African Dwarf Frogs in it, so I have to be sure there's no trouble. So, is a 20 gallon aquarium made with the same glass thickness as a 10? This thing's glass is as thick as the glass of the 10 gallon aquarium my ADFs are in now. And I filled it with water to test it; it's been a few hours, and it's fine. Any thoughts or suggestions?