Good advice

but if they're whites tree frogs or white-lipped tee frogs, they'll probably need it just a bit warmer than USA tree frogs, in the low 80sF or a basking spot maybe around 85F. If you can make sure on what species you have, you can find their care in good books. Make sure to use a multivitamin as well. All supplements are different so use as often as the manufacturers recommend. Use at least a 5% UVB if you're offering it, since the mesh makes 2% ineffective. For 4 I would be using a 24 x 18 x 24" or larger Exo Terra or an aquarium of similar size with good ventilation