For those who said it can't be done. Let it be known that I am living proof that it can. Out of all of those thousands of baby cerith eggs.........two have survived to infancy. Here they are! The tape measure is to give you an idea of size.
When I returned from vacation recently, I had dozens of those guys feasting on the glass which hadn't been cleaned in days. They would come out at night and disappear when the lights came on. No sign of them since the glass is being kept clean again.