White Tree Frog Question! URGENT!

[VegaIIIsGirl]

Thank you for responding...So to answer the questions you asked.
The size of the enclosure is 20" length, 10" width, and 30" high. My boyfriend made the tank himself using a regular 20 gallon tank and plexiglass on top to make it higher. I will include a picture. His humidity stays around 60, and we have a humidifier connected to the cage for misting. His temp stays around 75-80 degrees. His meals consist of small crickets and every once in a while a waxworm. We condition his water with Reptisafe. And his substrate is loose Cocunut Fiber. The temperature is maintained by a heatmat underneath the tank and a 100 watt lightbulb. He last ate two crickets last Thursday. I haven't noticed any poop in his cage. We've owned him for 3 months, he was purchased from Petco. He is now the only frog in the cage. His partner that we got at the same time as him escaped and we have been unable to find him. His cage is in a low traffic area. He is a pet for my 11 year old daughter. She holds him every so often or shows him to her friends when they are here. I wasn't aware I should be giving him any vitamins or calcium, so he hasn't been receiving any.

The pictures I included of the cage, along the bottom we have a running water source, and the white piping on the side is where we can hook up the humidifier for misting. I also included a picture of Bubba as of today. He likes his rock ledge up top of the cage. When I feed him I take him out and put him in a Tupperware bowl with 3-4 crickets. The wax worms if I dangle one in front of his mouth he'll usually snatch it from me. But all he has done the last week is sleep, stay in the same spot and has no interest in eating.