What size tank does a White's Tree Frog need?

A 20-gallon tall tank (18x18x24 inches) is the minimum for one or two adults. They're arboreal and need vertical height more than floor space. A screen lid is fine but you'll need to manage humidity by covering part of it.

Can White's Tree Frogs be handled?

Yes, but sparingly. Wash your hands with plain warm water first — no soap residue — and keep handling sessions short. Their skin absorbs anything on your hands, and excessive handling stress suppresses their immune system.

What do White's Tree Frogs eat?

Crickets and dubia roaches are the best staples, dusted with calcium at every feeding and a multivitamin once a week. Adults eat 3-4 appropriately-sized insects every 2-3 days. Avoid mealworms as a staple — their hard shells can cause impaction.

Why is my White's Tree Frog turning brown?

Brown coloration is usually normal — they change color based on temperature, humidity, time of day, and mood. If the frog is eating well and active at night, the brown color is nothing to worry about. Persistent brown combined with lethargy or appetite loss warrants a temperature and vet check.

White's Tree Frog Care Guide: Tank, Diet & Humidity for Beginners

There’s a particular expression a White’s Tree Frog makes when you mist its enclosure. The frog squints, hunkers down, and looks deeply, personally offended — like you’ve just committed a minor social transgression at a dinner party. Then it licks its eyeballs and goes back to doing absolutely nothing.

That deadpan tolerance is the personality trait that made White’s Tree Frogs the default beginner recommendation among tree frogs. They don’t care if your humidity is five points off. They’ll forgive an enclosure that isn’t professionally planted. And unlike dart frogs, which will vanish the moment you open the glass doors, a White’s Tree Frog will sit on your hand like a tiny, damp gargoyle and stare at you with the same unimpressed expression it gives everything else.

A plump White's Tree Frog resting on a broad green leaf, showing its characteristic sleepy expression and smooth mint-green skin

The Animal

White’s Tree Frogs (Litoria caerulea), also called dumpy tree frogs or Australian green tree frogs, come from the northern and eastern regions of Australia and a sliver of southern New Guinea. In the wild they inhabit a range of environments — tropical rainforests in the north, dry eucalyptus woodlands further inland — which is part of why they’re so adaptable in captivity. A frog that evolved to handle both monsoon season and drought isn’t going to fall apart because you skipped a day of misting.

Adults reach 3 to 4.5 inches, with females typically larger and plumper than males. They live 10 to 15 years in good conditions, and there are keepers on forums who report individuals pushing 20. The classic morph is bright mint green with a white or cream belly, but captive breeding has produced blue phase (teal to powder blue), snowflake (green with white speckling), and honey phase (golden-brown) variants. None of the morphs change the care requirements.

Males croak. It’s a low, repetitive barking sound — think a dog three houses down, muffled through a wall. They do it at night, especially after misting, and they’ll do it whether or not there are females present. If you’re keeping your frog in a bedroom, this is relevant information.

Enclosure Logic

White’s Tree Frogs climb. That’s the design principle. A tall enclosure — minimum 18x18x24 inches for one or two adults — with branches, cork bark tubes, broad-leaf plants, and enough horizontal perching options that the frog can choose its microclimate. A 20-gallon tall tank works. A 24x18x24 Exo Terra or Zoo Med front-opening terrarium works better, because you’re not coming at them from above like a predator every time you feed or mist.

Screen lids are standard on glass enclosures but they let humidity escape fast. Covering roughly half to two-thirds of the screen with plastic wrap, a sheet of acrylic, or a damp towel keeps the humidity in the 50-70% range without making the tank a swamp. Stagnant, saturated air causes bacterial skin infections in this species as reliably as dry air causes stuck shed. You want airflow and moisture, not a sealed box.

Substrate can be simple. Coco coir or plantation soil, 2-3 inches deep, misted to keep it damp but not wet. Paper towels for quarantine or a hospital setup. Reptile carpet snags claws and harbors bacteria — skip it. Live plants are great and White’s Tree Frogs can handle sturdier species like pothos, snake plants, and philodendrons without destroying them. They’re heavy frogs but they don’t dig, so rooted plants in pots placed behind decor work fine.

A shallow water dish large enough for soaking is mandatory. Use dechlorinated tap water or bottled spring water. Change it daily — these frogs sit in their water dish and frequently defecate in it. A frog soaking in its own waste is a frog headed for a bacterial infection.

Temperature Without Overthinking

Ambient temperature between 75-85°F during the day, with a warmer basking area around 85-88°F directly beneath a low-wattage heat source. Nighttime can drop to 68-72°F. These numbers are wider than what you’ll see for dart frogs or Pacman frogs, and that range is exactly why White’s Tree Frogs forgive beginner mistakes so well.

A ceramic heat emitter or a low-wattage deep heat projector in a dome fixture on one side of the lid creates a natural gradient. Heat mats stuck to the side of the tank work in a pinch if you live somewhere warm, but they don’t raise ambient air temperature effectively — they heat the glass they’re stuck to. Overhead heat is the standard for a reason.

Every heat source should be controlled by a thermostat with the probe dangling into the warm zone at frog height. Digital thermometer-hygrometer combos on both the warm and cool sides cost about twelve dollars online. That’s twelve dollars between you and having to guess whether your frog stopped eating because it’s cold or because it’s sick.

UVB is in the “beneficial but not mandatory” category for this species. A T5 2.5% or 5% tube on a 12-hour timer supports calcium metabolism and may improve activity levels. Plenty of healthy White’s Tree Frogs live full lives without UVB, provided their insects are properly dusted. If you add UVB, make sure the frog can move away from it — there should be shaded areas in the tank where it can escape the light entirely.

Feeding and Supplementation

Crickets are the backbone of a White’s Tree Frog diet. Dubia roaches are better if you can source them — more protein, less chitin, no noise. Hornworms and silkworms make good treats. Waxworms are frog candy and should be rare. Mealworms have a hard chitin shell that White’s Tree Frogs struggle to digest compared to ground-dwelling species like leopard geckos — they’re not a staple and not really worth the risk.

Juveniles eat daily. Adults eat 2-3 times a week. Feed 3-4 appropriately-sized insects per meal, where “appropriately sized” means no longer than the distance between the frog’s eyes. Remove uneaten crickets after 30 minutes — a cricket left overnight will nibble on a sleeping frog.

Calcium powder without D3 at every feeding if you’re using UVB. Calcium with D3 at every feeding if you’re not. Multivitamin powder once a week on top of the calcium. Don’t dust so heavily that the insects look like powdered donuts — a light coating is plenty. Too much supplement dusting can cause vitamin toxicity, especially with fat-soluble vitamins like A and D.

Some frogs won’t take insects from tongs. If yours stares at the tongs like they’re an alien artifact, release the crickets into the tank and let the frog hunt. White’s Tree Frogs are crepuscular hunters that prefer eating at dusk and dawn, and a frog that ignores food at 2 PM might be ravenous at 8 PM. Adjust your feeding schedule around their internal clock.

Health and What Breaks

The most common health problem in this species is bacterial skin infection, which appears as reddish or ulcerated patches on the belly and undersides of the legs. It’s caused by sitting on wet, dirty substrate or soaking in a fouled water dish. Prevention is simpler than treatment: change the water daily, spot-clean visible waste, do a full substrate swap every 3-4 weeks.

Metabolic bone disease happens in frogs kept without calcium supplementation over months to years. Early signs include a drooping lower jaw and weak, twitchy limbs. The frog’s bones literally soften, and by the time it’s visible the damage is permanent. This is 100% preventable with calcium dusting and, optionally, UVB.

Obesity is common in captive White’s Tree Frogs. They’re ambush predators with the metabolism to match, and a frog that gets fed every day will pack on fat until it develops fatty liver disease. You should be able to see a subtle ridge along their spine — not sharp or pronounced, but present. A frog that looks like a lime-green stress ball is overfed.

Frog turning brown? That’s covered in detail here. The short version: it’s usually normal, tied to time of day, temperature, or mood. A brown frog that eats well and moves at night is a healthy frog. A brown frog that’s lethargic, refusing food, or sitting on the floor constantly — that one needs attention.

White’s Tree Frogs are the most forgiving amphibian in the pet trade by a comfortable margin. Give them a tall tank with branches and leaves, a bowl of clean water, crickets dusted in calcium twice a week, and a heat source that stays roughly where it should. They’ll do the rest for longer than most dogs.