>>The best bet is to feed it and leave it alone, most all of my cresteds and ive got a room plus full of em wont eat baby food if I am in the room the crickets just get em so excited they cant help it, also keep in mind its hard to tell if a baby is eating b food they dont eat much ya know....good luck ask way if you need more info.
>>
If this doesn't work and/or you notice one of them growing significantly faster than the other, you may have a dominance issue. Sometimes they don't get along, and one can cause the other one stress, leading to the stressed one not eating well and therefore not growing. In that case you'd want to separate them; a second critter keeper would be a cheap solution. It could also be that since they're new, one has dealt with the stress of moving to a new home better than the other. Let them have some time to get settled in and they'll probably both be eating soon.
-----
0.1 Albino Leopard Gecko - Tigger
0.1 Crested Gecko - Pooh-Bear