Occultus wrote:Increase the humidity levels inside your nest significantly - the brood will likely develop with a higher succes rate.
Offer a sinful amount of protien in the form of crickets etc, even if they don't touch it. Give them decent variety and replace daily.
Keeps temps at a constant 26c for optimum foraging.
If this doesn't work, the queen may be damaged. Consider changing the nest that your using if nothing is to be done.