
Java Gliding Frog Rhacophorus sp.
Description: Several somewhat common species are widespread in Southeast Asia. They spend most of their time in tall trees in the humid, tropical rainforests. The variable color ranges from light to dark green, often with tiny dark spots. They have large toe pads and large colorful webbed hands and feet that are spread wide to assist with gliding leaps. These "flying frogs" can glide 30 to 50’ or more! Females are 3" to 3½" long, males are 1¾" to 2". Can live for 5 years or more. Temperature: Daytime 75° to 80°F with about a 5° to 10°F drop at night. A warm daytime basking area (up to 90°F) should be provided along with a temperature gradient throughout the enclosure. Humidity: High, best at 70 to 80%. Lighting: Plant grow lights are necessary for live plants. Use a timer with an average of 12 hours on / 12 hours off. Seasonal day length fluctuations may help to stimulate breeding activity. A dim night light is required for viewing nocturnal activities. Feeding: Appropriately sized crickets are fine as a staple diet but a variety of other insects should be offered. Larger specimens may occasionally be given pinky mice. A good vitamin/mineral supplement should be given twice a week for adults and more often for young, growing frogs. Clean water should be available at all times. Habitat: A tank size of at least twenty gallons with a ventilated top will suffice for one or two frogs, a larger tank may be needed for breeding. Set it up as an arboreal jungle habitat sturdy plants and branches. A good size water area, that has shallow areas and is 3" to 5" in the deep area, is preferred over a water dish, especially if trying to breed them. These frogs do poorly under unsanitary conditions or overcrowding, good tank maintenance is absolutely required. Estivation: Lower the humidity and reduce the temperatures to 70° - 75°F daytime, 60° - 65°F night for 2 to 3 months. Sexing: Females are larger and heavier than males. Males are more colorful and develop nuptial pads on their front feet at breeding time. Breeding: Males call during the night and attempt to mount any female that comes near. If accepted, axillary amplexus occurs the male grasps the female behind the front legs) and the female will search out a suitable spot above the water to build a foam nest. She whips it up out of skin secretions with her back feet until it gets to be about 6" across and then blends up to 800 eggs into it. The male does not assist in nest construction but remains attached to her back to fertilize the eggs when they are laid. The couple will soon break up but the female will usually return and deposit more eggs into the nest without the male being present. Other spawning pairs may also utilize the same nest and repeat this process, almost all of the eggs seem to get fertilized. A surface crust forms on the nest within a few hours after spawning and it will start to deteriorate in a few days as the eggs hatch and the tadpoles drip down into the water. The ½ to ¾" tadpoles can be raised together in a standard aquarium filled with water (up to 10" or deeper is fine). Feed them algae, tropical fish food flakes, frozen mosquito larva and blood worms, etc. They grow fast and metamorphosis should be complete in 3½ to 4 months, the froglets will be about ½" long. Feed them fruit flies, tiny crickets, lawn plankton and other appropriately sized insects. The froglets seem prone to deficiencies so be diligent with the use of supplements, every other feeding should be enough. |