My first whites tree frog.

[Louis Charles Bruckner]

My only concern about your set up is the height. They love to climb and you might find your guy at the top of the tank trying to figure out how to get out!

I have noticed this as well. I am thinking of getting a 18 X 18 X 24 this weekend.
It has decided that it wants to hide on top of the waterfall. LOL

[Sasha]

I started with an 18 inch high and 2 months later got the 18x18x24. With the smaller tank they would try to stick themselves to the mesh top and then fall. Luckily they had a soft substrate to land on!

[Louis Charles Bruckner]

and on my set up it is 90% water so a splash down is not bad either.

[Sasha]

Did you cut a hole in the top to put the hose in or is it just sitting on the top? I always worry about cutting a hole in the mesh, I feel like they would somehow find a way out of it. Thankfully, Outback Steakhouse has stiff cardboard coasters and I take one and cut a hole in it big enough for the hose to fit and then it's able to sit on top of the mesh tucked slightly under the hood light and it doesn't fall over.

[Louis Charles Bruckner]

I just formed the hose so the end points down and place it on top of the screen.
I didn't want to cut the screen for fear of causing sharp edges and the fog would pass though the screen just fine.
It is just like the accordion section of a drinking straw that you can bend and it will stay.

[Louis Charles Bruckner]

OK it is official after close inspection I found his nuptial pads and while handling he fully inflated his throat sack.
So I am pretty sure it is a male. and I am going to call him Bubba.

Here he is having a little conversation with me about the matter.