
Newly arrived larvae trying to leave substrate?
First time beetle owner. I recently purchased these Dicronorhina derbyana larvae and they arrived today.
I moved them from the little deli cups they arrived in to these slightly larger containers because the cups didn’t seem to have any ventilation holes. I kept them in the same substrate they arrived in because the extra flake soil I ordered hasn’t arrived. About half of the larvae keep rising out of the substrate and reaching towards the lid every couple of hours, and I’m not sure why. Is this normal post-delivery stress or is there something about the containers they don’t like? Does the substrate need to fill the entire container? If so, what should I do while I wait for the flake soil to arrive/be aerated?