[FONT=Arial,Helvetica,sans-serif]Helpful Tips for Controlling Unwanted Pests:[/FONT]
Submerse the new rock into a bucket filled with saltwater with a specific gravity of 1.035 to 1.040 for one minute. Any invertebrates including mantis shrimp, bristle worms, and crabs will quickly evacuate from the rock and into the bucket of water. Remove the live rock from the bucket and sort through the invertebrates in the bucket. Determine those you want to add to your system and discard unwanted pests. Bristle worms still attached to the rock can be removed with a pair of needle-nosed pliers or tweezers. This technique can be used to remove unwanted pests before or after curing your newly arrived live rock. You can also do this with plain, fresh water.