HELP! my new baby red eyed tree frog is not eating!

[cdfrogs]

Hey guys I just tried putting in flightless fruit flies today. I put calcium on them but shortly after they started to climb on the glass!!! I hoping they will not climb out but I think they will and it is in my room So I was wondering is there any way to keep them in the tank. Oh also I got a 5.5 gallon today and put them in there with a pothos plant an damp paper towels. Please help!!

[cdfrogs]

Also I forgot to say that I do have some crickets that are half an inch but I think they are to big for my frogs. Do you guys think I should feed them to my Red-Eyed Tree Frogs that are about an inch or are they to big? Thanks