Hello.

The larvae you see below the light are trained to accept food by a feeder, who is just above the light and who gives food all night, every night.

I start with the food starter 0.5, and later with the 0.7.
https://ibb.co/9Nsrw1L
https://ibb.co/4R5SCPJ
https://ibb.co/ZxcS136
https://ibb.co/bbpX7DZ

A+