Originally Posted by
1journeyman
Came in on live rock, live sand, or possibly the tooth fairy.
They are harmless and good scavengers.
That's why I love to cycle a tank with uncure live rock. No telling what you will find. I just moved my tank that had been set up for over a year. Found a Serpent Star, a Pistol Shrimp, and some big bristle worms.
Now... you can also get burned by introducing crabs and mantis shrimp....
Its cool to discover all the cool critters that come in the live rock but then again I also found 3 mantis shrimp
lmfao!