Hey everyone new here

I was just wondering if anyone has every had a Grey Tree Frog?
I just got one and I could maybe use some tips, here's what I got.

Temperature should be 68F-78F
Eat: Crickets, Meal Worms, Flies, Wax Worms, Earthworms, Small Silk Worms and Moths.
Water: Changed daily, filtered or spring.

Right now I've got him in a KK, what size aquarium should it be in when hes larger.
Should it be more vertical or horizontal

Cam

He's wild, my friend caught him and didn't know what to do with him but he thought it would make a good pet, I've heard about them being pets.
Is this okay?