Has a hard time eatting.

[rodsboys]

I would do away with those pellets you are using. They are meant for small animals. Large frogs can not get enough of them without making a huge mess. Move up to something bigger so you can put less in the tank and more in the frog.

This is a great staple: Tetra ReptoMin Floating Food Sticks - Food - Reptile - PetSmart
And as Louis said you can add in frozen thawed items to your mix.