I am planning to get a pair of Whites Tree Frogs soon and I'm preparing their vivarium now. They will be in a 10 gallon quarantine tank initially so I can monitor them and teach them to use a feeding bowl, but then they'll be moved to a larger tank. I have a 20 gallon high tank already (dimensions 24 long x 12 wide x 16 tall) but I've read some conflicting information on whether or not this is big enough for their whole lifespan. Some sources say it's fine but others say 25 gallon minimum. Will I have to upgrade later to house the two adults? I don't mind upgrading if needed. I just want to make sure that my frogs are happy!