You can try the Honey or Pedialite to induce some activity which some info on using either is below:
For the honey heat a bath of water to 80 degrees, melt a few drops of honey (there is no exact measurement for this, just a drop of honey per ounce of water) and let the water cool a little before bathing your frog. For the electrolytes, lots of people use unflavored pedialite (which is what I use). Stay away from the flavored stuff, no telling what that has in it. Unflavored pedialite looks like water and has barely any taste. Drop this in warm water (mid-70s or room temp) at a 10/1 ratio (10 water, 1 pedialite, so like...10 ounces of water, one ounce of pedialite) and mix it in, then give the frog a bath for 10-20 minutes to let it soak in the nutrients.

I wouldn't move him but you need to see that he is eating so when you feed watch for him to eat. You can also have a fecal exam done by taking some of the Frogs droppings to a herp vet and have the vet check your frog over.
Does your frogs move around the tank at all? Soaking is usually a sign of humidity issue so check to make sure your hydrometer is working properly. They are not the most accurate things. 50 - 60 percent is a good place to be with WTFs.