Reefer Surprised by Massive Eunice Worm

by | Feb 29, 2016 | Eye Candy, Industry, Invertebrates, Reef, Science, Tanks | 0 comments

reefs.comEuniceFeatureWe all know the inherent risks that come with using live rock. Sometimes we’ll even be gifted hitchhikers on new coral. One of the most undesirable pests has to be a giant worm from the Eunice genus, commonly labeled a ‘Bobbit worm’. Some of these worms can grow to massive sizes while leaving coral and fish skeletons in their wake. All the while evading detection by stealthily moving within your aquascape, only to reveal themselves at night.

This reefer, known on YouTube as gurutek, finally had the privilege of seeing the size of his little monster while breaking down the tank in preparation for a move.

He went on to say, “I was breaking down the tank (as I was moving it), hence it looking shoddy. That unice was in there 2 years before I noticed, and only noticed because I had whole coral colonies missing after a single evening. I first saw it after I spent a few nights sat up (after lights went out) for about 3 hours per night looking for the critter who was eating my corals. Even when I knew it was there, I only ever saw it 3 times within the space of a year. It hides in the rocks, and only comes out at night, impossible to catch without taking everything out the tank.

Just another reason to keep that red flashlight near the tank for the occasional midnight observation, particularly if you’re losing entire coral colonies in a single evening.


  • Austin Lefevre

    Austin Lefevre founded and owns Aqua Box, a group of passionate professionals who bring unique aquarium systems to fruition worldwide and offer fully quarantined and conditioned fishes to the US retail market. Austin has been a bonafide fish nerd for his entire life. When the kids in elementary school were reading Dr. Seuss, Austin was reading Jacques Cousteau. He's been in the aquarium industry since 2002 working in local fish stores, coral farms, and headed up a fish breeding program. He's been an avid SCUBA diver since the age of 12 and consistently seeks new aquatic adventures.

    View all posts


Submit a Comment

Your email address will not be published. Required fields are marked *

Upcoming Events