I read a post a long while ago regarding a guy who fed his chunks of chocolate starfish. He kept them in his sump and when he went to feed him, would lop off an arm of one of the starfish and put it back into the sump. I thought this was a neat idea since the arm grows back, almost an infinite supply of food.
And for the record, the shattering aquarium glass is a myth. If one has that I'm not aware of, that was the worst made aquarium/glass ever constructed.
Along with the post concerning the mystery clicking in their tank, mantis shrimp aren't the only ones that make this sound. You will stumble upon stories of people freaking out over this sound thinking they have a mantis and that if they don't find it their whole reef setup is in danger. If it is a mantis this might be true, but in these stories it ended up being their pistol shrimp.