Hi Nabced
Here is a list of some basics for Whites Tree Frogs.
A. Dechlorinated water for any water going in with them including misting, Spring water is good also.
B. Your substrate should be Eco Earth or Plantation soil. Any substrate that has something to swallow will be since they eat anything that hits their mouth including bark and sphagnum moss.
C. Crickets should be no longer that the distance between the frogs eyes.
D. They need plenty of high leaf and branches to perch and sleep on. Live plants retain humidity in the tank better so some suggestions are: Bromeliads, Snake Plants, and Pothos. All should be washed and any dirt with fertilizers removed before putting into the tank.
E. The water dish should be changed at least daily and shallow since they are not great swimmers.
F. Temps between 68 and 80 is fine for them. Misting should happen once to twice daily to keep humidity about 60 - 70 percent.
G. Feed using a cricket bowl and you can monitor what they eat and remove the uneaten crickets in the morning.
Basically a small glass bowl like a cereal bowl that the crickets can't get traction and jump out of. Place into the substrate and loose crickets will eventually fall in and collect there.
H. Spot clean daily

Don't pick up your frogs after using cleaners, hand sanitizers, and rinse your hands well with plain water leaving them a little wet.

Hope some of this helps and read the care sheets :-)

Don