It can be frustrating to get babies to eat the first month or two. Sometimes they are freaked out by your intrusion and won't eat, or for any number of reasons, won't eat.

I'm with Steve on this one. Try an escape proof plastic tub. (locking escape proof, tight fitting top, moist babies can scale walls, size doesn't matter, don't fall for that one) Just pluck them up and put them in there, bare tub, with small pieces of food. Keep them warm perhaps by heat pad on part of the bottom, and let them settle down in there for several hours or the entire day if necessary. I think you'll find that once they calm down and feel comfortable, the food will disappear.

You can't be in a hurry and keep moving them back and forth, so be patient. It took several tries to get my recent litters to eat. Do yourself a favor and don't use any particulate substrate. paper towels work fine if anything is used. If they are more willing to eat in their tank it's because they are settled and not feeling vulnerable. All the more reason to just line it with towels or something like that which is not a swallowing hazard then go ahead and feed them in there.