Welcome to the forum To start, the frog's enclosure is a bit small, but that should be fixed soon the minimum size for a green tree frog should be a 10 gallon tank. Humidity should be roughly around 60-75% and temps should be in the high 70s. always have a source of water for your frog as well, provide this with a shallow water dish and be sure to use a water conditioner or RO water. Substrate should be paper towel for quarantine purposes. keep us posted on your little guy!