Gray Tree Frog (Hyla versicolor)Description : Grey Tree Frogs are able to quickly change their color from green to brown to blend in with tree bark and leaves. They have loose throats and are arboreal which means they live in trees, have large toe pads and enjoy climbing. Males grow to 1½ inches in length, while females are slightly larger, growing up to 2 ½ inches long. These frogs can live from 7-9 years if taken care of properly.Habitat and Tank Requirements : This species is native to The United States. They do well with plenty of live plants and other things for them to climb, such as wood and rocks. Approximately 1/3 of their tank should be water. You can either use an under-gravel filtration system or clean the water every 2-3 days. You can use a small bowl just deep enough for the frogs to submerge themselves. If you decide to go with a filter, use common sense: a pump that is too small will leave the water dirty, while a too-powerful pump with filter out the microorganisms needed to maintain a healthy pH. Be sure there are no openings in the tank through which the frog can escape. A hole large enough for a frog to stick its head out of is large enough for it to escape. Grey Tree Frogs are small enough that you can keep 3 or 4 in a 15-20 gallon tank, however, as with all frogs; do not keep different species of frogs in the same tank. There is a risk of disease and parasites being spread between species, even if the carrier frog does not show any symptoms. The comfortable temperature range for these frogs is 68-78º F during the day and a slight drop to around 68-69º F at night. LEDs or other low-wattage light bulbs work best for maintaining these temperatures. Diet : Grey Tree Frogs are insectivorous and will feed on small crickets, fruit flies, mealworms, wax worms, and any other insect small enough for them to ingest. It is recommended that food be dusted with calcium to prevent bone softening.Handling : Allow your frog time to become accustomed to its new home before handling them extensively. Handling them little by little over a period of time lets the animal get used to you and reduces stress.