Select from: (I) Fill the tank with a saltwater mixture. White tree frogs love saltwater, and it's recommended that you use aquarium water that's at least 80 gallons.. (II) The size of the tank depends on the species of frog and its size, so make sure it is large enough for a white tree frog. If the frog is larger, do not keep it in a black hole.. (III) You can also buy small aquariums and a ten gallon aquarium and set them in the same inner space of the tank. As with most species of frog, white's tree frogs get too warm, so they like a cooler place to rest at night for healthy plants.. (IV) You can purchase a tank at a local pet store or online through a company like exo terra. Arboreal and terrestrial tanks are your two best bets..Choose from options above and answer: What most naturally follows?

How to care for a white's tree frog
Buy a large aquarium.
The tank should be at least 20-gallons. The taller the better, as white's tree frogs love to climb and to perch themselves high on branches.
Answer:
(IV)