New tomato frog -- it's TINY!

[emandkel]

I just came home with a TINY tomato frog, just a BABY, maybe an inch long. Got him/her at Petsmart.

The clerk thought they were feeding it the tiniest crickets they could find, but weren't sure. I have fruit flies and can get pinhead crickets. When I was paying for my stuff (bought a small water bowl for it) the clerk -- think he's actually a manager -- asked me if I knew the frog needed a bowl big enough to spread out in. Then I showed him how small the little frog is.

I will be setting up a medium Kritter Keeper with a heat pad around one end, with coco-earth substrate, small water bowl, and a couple of cork pieces set up as hiding places. But, it being so tiny, should I just use wet paper towels instead? Is a heat mat necessary?

Right now it is in a "travel" cup with a wet paper towel, within a 10-gallon terrarium. I don't know whether it would be better to take it out and feed it in another container or put the fruit flies/crickets in his home. I have another tomato frog, also bought from Petsmart, but he's big, about 2" long. I wanted another one, but I didn't expect to find a frog this tiny. Any advice on the best way to raise this little frog would be great!

Edited to add pictures:

Little one beside a penny:


New habitat (temporary until it grows bigger): Currently in a medium-sized Critter Keeper within a 10-gallon, haven't attached the heat pad because it said not to attach to plastic. If I need to, I can attach it to the 10-gallon where the Critter Keeper is.