Is this normal frog behavior?

[Hypnotic]

Scratching with his hind legs means he's probably a little scared and trying to burrow away from you. I had one that absolutely refused nightcrawlers, so I waited a while and tryed again when he was older, and it went alot easyer then.
Frogs can be really stubborn, don't give up, but theres no shame in postponing a little.

[Louis Charles Bruckner]

Like I said it will take time.
Only try it 15min or so at a time at night.
Remember these frogs are also nocturnal.

Have you ever use a red wrigglier if so that might be an issue since those excrete a foul tasting mucus when
injured.
Just be patient and keep trying 15 min at each night or early am.
If the frog gets stressed it is time to quit.
You don't want the frog to associate the tongs with a negative experience.

Also start at the edge of the frogs mouth and go to the center I have heard that this will trigger a strike.

[Mentat]

Is your frog still in the 10 gallon tank? Such a large enclosure can stress out a small Pacman and it won't feed while stressed. First thing I recommend is to get an ExoTerra Medium Breeder Box or similar; cover 3 sides with aquarium background or dark paper, and just add a water dish, shredded coco substrate mixed with dechlorinated tap, and a small silk plant. Place frog in it and get the whole thing inside your temperature and humidity regulated 10G tank. You can release frog into 10G once it reaches 3.5-4 in.

In regards to bottled water; there is no telling what is in there. Some companies add chemicals and other over filter it until it's safe for humans; but unsafe for frogs. It's better to get a bottle of Seachem Prime and treat your tap water with it.

Temperature inside the frog's box should be 82F with a slight drop at night. Humidity should be between 70-80%. A combo digital gauge is the best way to monitor these mandatory parameters.

Crickets should be sized same as distance between frog's eyes and gut loaded for 24-48 hours prior to feeding, with carrots, lettuce, oats, and cherios. Night crawlers can be cut from pointy end same as frog's snout to vent length. Would release couple crickets in box half hour before sunset and remove any uneaten ones the next morning. If your frog eats them can add more until it's satiated and stops feeding. For the worms just drop them in front of frog's mouth. Once frog calms down you can try tong feeding; but be aware that some of them won't eat from tongs.

Hope this helps and you can get frog eating soon. Keep us informed of progress and good luck !

[KerkeringJ]

Thanks! I'll try the smaller enclosure/smaller nightcrawlers. I also turned down the temp a bit for now, because he was slightly buried on the coldest side of the tank when I woke up. Also, I've noticed these little white spots, are they normal? You can see them on the sides. He's starting to look really skinny now, lots of folds where there weren't before.

imgur: the simple image sharer

[Mentat]

Can't see white spots on picture. If white specks and moving they are mites and not good for your frog .

[KerkeringJ]

They weren't moving. They're the little bumps near the edges of his belly. They were probably there before, I just noticed them and thought I'd mention them just in case.

Also, what does hand feeding mean? Apparently he was hand fed at the pet store, I figured that meant with tongs.

[Hypnotic]

Hand fed can mean with tongs or with just hands. While this might seem like a good idea when your frog is small, some won't do this because a giant hand is scary. Also, it's a bad idea because when you have a frog the size of your hand, if your frog is used to hand feeding, good luck with your fingers.