oh, also make sure to dust the crickets with a multivitamin and calcium supplement (no D3 in the calcium if providing a uvb/uva light source).

also, are you providing any light source? they do well with a good uvb/uva bulb--the zoomed reptisun 5.0 works great. just remember that the uvb/uva rays cannot penetrate through glass or acrylic, so take any cover off of your light fixture and place it on the screen part of your lid.