2 new whites, there tank and a few ??

[IrishRonin]

Ok so first off I actually have a good story about petco. I went in to get a little more eco-earth for my FBT build and saw they had a bunch of whites. Well I couldn't resist plus I've been trying to get some for my work anyway so.... it worked out. The manager was a herpetologist in training and was very knowledgeable and helpful, so i got 2 fat healthy looking ones. Well unfortunately one was dead the next morning, i took him back and got a new one. When I was choosing my new one I was going for this larger fatter one but as I was trying to grab em this smaller one grabbed my hand and refused (for like 3 min.) to leave me no matter what I tried. So needless to say he/she chose me and ended up the one that came home. Anyway the one original one is doing well(well they both are), eating pooping, but for some reason he/she is always on the ground (sleeping under leaf litter,hunting,exploring) where the other one is always up high or sleeping in the plants. I know from experience tree frogs should be sleeping up high or its usually something wrong, but he/she's fat healthy and active at night so I'm confused. By the way I've had them for over a week. Any help would be great- especially from blueisallineed 1st 2 pics are of there tank its 40"L X 32" H X 16"W and the background was done when I got the tank and the last pics ( a little blurry) are of the two little ones (no names yet) you can see them sleeping (one on the ground and one in the plant)