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You sure that wasn't a tiger pistol shrimp?

Mantis shrimp are exotic terrors of the deep you don't exactly forget you have.

> Mantis shrimp are exotic terrors of the deep you don't exactly forget you have.

Yep. Any fish you put in the tank would disappear soon after.

After doing a bit of research I think you're right. For some reason I got them confused.

They're one of two shrimp associated with the tapping noise, so it's an easy mistake.

You usually have to special-order mantis shrimp. It's easy to accidentally get a pistol shrimp when you asked for a peppermint; they look similar.