Housing
A tall well-planted (with non-toxic/abrasive plants) terrarium with good ventilation is best for a pair of frogs. Provide a substrate of non-chemical potting soil with damp moss covering it. Never use cedar or pine shavings (toxic), gravel (abrasive), bark or sand (abrasive and ingestible) as a substrate! There should also be a shallow water bowl filled with dechlorinated water (just add dechlorinating drops or let the water sit out for a day before using). You can add hiding places made of bark, smooth branches, plastic or real plants, and/or large SECURE stones. When adding something that was collected from the outdoors, allow it to soak in a one part bleach and ten parts water solution overnight, rinse thoroughly, then sit outside for 24 hours before adding it to your frog's enclosure.
Temperatures
Ideal temperatures for the Barking Tree Frog would be at about 71°F at night and 81°F during the day with slightly cooler temperatures for a couple of months in winter. Hot rocks/sticks/caves should not be used due to the fact that they can cause thermal burns.
Diet
The Barking Tree Frog requires a varied diet of gutloaded medium sized invertebrates such as meal/waxworms, and crickets (usually sized 3/4s of an inch). To gutload, feed the insects fruits, vegetables, and exotic fish food at least one day before feeding them to your frog. Instead of catching wild insects for your frog, buy from reputable pet stores or mail order suppliers to reduce the risk of feeding your frog disease/pesticide-ridden insects. Remove all uneaten insects daily.
Health
If your frog is cut or burned by something in its cage, remove the object and call a vet before applying any kind of medication due to the fact that some can be lethal to your frog.
Fungal infections are very common in tadpoles and younger frogs. They look like inflamed areas of the skin surrounded by whitish threads. In its early stages, it can be treated by immersing the frog/tadpole in a 2% solution of malachite green or Mercurochrome for five minutes, repeated again after 24 hours. A veterinarian should be called if the infection does not clear up.
Red leg is a common disease in frogs caused by bad husbandry. It causes small ulcers, hemorrhages, and reddening of the skin around the belly and underside of the thighs. The infected frog should be kept warm (85 F) and immersed in a 2% solution of copper sulfate or potassium permanganate.
You should always at least consult a veterinarian if you think there is something wrong with your frog!