Just posting this bit of info in case it helps another person.

I have had 3 Whites Tree frogs one is Two years the other is 1 year and the other passed away at 6 Months.

Two of my frogs stopped eating roughly at the same time. the 6 month stopped eating for about Two months, And I didn't force feed hoping he was eating at night. Till he started to get spasms, like hiccups. I began to force feed him crickets only to have him pass away a Week later.

Shortly after he passed away my second male stopped eating for roughly a month. He would turn away food I placed in front of him. Though he seemed healthy, active at night no singes of stress but loosing weight. I began to feed him a recipe my vet gave me which is intended for Gecko's when they stop eating. I force feed him the recipe for a week or so. Then I starved him for two night's and plopped a super worm in front of him. He ate it right away and since then has been eating almost anything I plop in front of his face, which he never has really done for me. Now he is nice and plump.

This is the recipe I force fed.

In a blender combine:

1 can of Hills A/D pet food (available at vet clinics)
1/4 - 1/3 cup ensure (not chocolate)
1 Jar baby food (squash)
1/4 - 1/3 cup pedialite
2 tablets or contents of 2 capsules of milk thistle (herbal supplement food found at most drug stores)
1/2 tsp of calcium powder and herp vitamin powder
1 large handful of meal worms, add slowly while mixture is blending.

Puree all ingredients until completely smooth, and poor the contents into ice cubs trays and freeze. Store cubes in a zip lock bag until ready to use, and then thaw one at a time and store in fridge for 2-3 days.

Using this mixture, draw a full eye dropper and place a drop on the gecko's nose. It will lick it off, and as it does, slowly squeeze out a little at a time. Most gecko's love this food and will lap it up.

The last part obviously doesn't work with frogs. I used a tin piece of plastic I obtained form my vet to open the frogs mouth, then my Wife would squeeze a little in his mouth, making sure it doesn't go into his lungs. I would feed him a full eye dropper each day. This is a Two person job, and I recommend you sit on the floor when you try this, your frog will make attempts to jump out of your hand.

I hope this helps the next person who's frog wont eat and displays no singe of sickness. How ever this should not replace taking your animal to a Vet.