A 4 week old hatchling needs to eat three meals of live insects of appropriate size EVERY DAY to survive , how long has it been since you got the baby and how long since it ate anything ?
If you have only just got the hatching a few days ago, this is more than likely relocation stress and wont last long , usually eating and basking inside a week. If your baby has been like this for longer than 1 week this is very serious / life threatening , you need to consider
> a vet visit
> handfeeding the bugs to her.
You provided very little useful information , we need much more information and details on your beardie's setup and your husbandry otherwise we can't even hazard a guess. You might need to get mum and or dad or an elder sibling help you getting the information we need.
Here's my Cheat Sheet : There are targeted questions and guidance in this -
viewtopic.php?f=6&t=234738&p=1806050#p1806050
If you work through it methodically , the chances are there are likely a lot of issues that need to be tweeked or changed and they will pop right out at you, if you can give very detailed answers we will then be in a position to offer help. Is impossible to help you if you don't provide thorough details .
It may prove necessary to involve a reptile vet if your bearded dragon has serious health issues. Are you in a position to afford to take him to a good reptile vet should this prove necessary ?
Here's some guidance on feeding :
basically :
hatchlings
three feeds of live appropriate sized insects per day as many as they want per session offered a few at time if it's hoppy or fast moving
+ offer fresh high calcium greens daily (might not eat it).
Juveniles (6 months to 12 months)
two feeds of insects per day
+ offer fresh high calcium greens daily (might not eat it)
Good staple insects
>> BSF maggots
>> blowfly gents
and the pupae and flies , great for hatchlings and juveniles , naturally rich in calcium
>> silkworms
small (1-1.5 inch for sub 3 month olds)
medium (1.5 - 2 inch for larger hatchlings and juveniles)
large ( > 2 inch for beardies older than 12 months.
>> crickets / roaches / locusts , must be gutloaded with calcium rich foods and greens & dusted LIGHTLY with calcium powder.
Repashi GRUBPIE is acceptable as a backup food.
Hard and soft pellets are dubious , ok mixed in as softened croutons through their greens/salad (maybe).
Bites = rubbish food.
Insects suitable for treats
wax worms
if beardie older than 12 months , not before
mealworms (lavae , pupae and beetles)
superworms (lavae , pupae and beetles)