Hey, I have one of those. Im still not sure what is is, Ive had it for a little over a year and I caught it in Mississippi. (I mean to release him/her as soon as I go somewhere with the right climate again) I know it LOVES mealworms and I havnt had any problems. I keep it at room temperature and he seems to not like to much heat. I do have a uvb light because Im not sure if it needs one or not.
From my research it seems like a tropical house gecko but I could be wrong. He seems more nocturnal to me, but that might be because its so scared of me when im in the room.
It doesnt get any bigger than that, as far as I can tell. because mine hasnt grown in all this time. It doesnt have the type of stick pads as frogs, but it can climb strait up the side of its enclosure and it can hang upside down on my hand just by its feet and it feels like it has stick pads, just not moist at all.
I give it water by dripping it on its nose with an eye dropper, thats the only way i can get mine to drink.
What ever it is, good luck!