Just to say, if you are doing to leave food in over night use locusts, not crickets.
If you're BD doesn't eat it the cricket may bite them in the night, where as locusts won't do that.

Its just settleing it, so as long as it doesn't seem under weight you shouldn't worry about it not eating for the first week. Just keep an eye on what its doing and maybe if you are going to offer crickets you could feed in another container? That way you always know if the foods been eaten or not and your dragon won't be at risk from bites.