I think you ment BRISTLE WORMS and MANTIS SHRIMP.... the worms are just a pain because they are also called "FIRE" worms because if you touch them it stings and feels like fire...... the mantis shrimp will prey on anything in your tank and eat it up..... when it gets bigger and you don't want to feed him a 80 doller angel or something like that....... if you suspect that you have one tie a piece of fishing line to a piece of fish or something and in the morning you will see it going into a space of a rock ,, get some boiling water in a saringe and squirt it into the space and ........... .... ... ... ... ...BYE BYE !!!! Mr.Mantis....
Originally posted by gabe:
why are bristle shrimp and mantis worms so undessirable to have on your live rock? do they hurt fish or harm your tank why are they so unwanted?