Hi fellow reefers. A spotted about 4 of this creatures in different spots on my tank. I got one out. Its some kind of worm with tentacles. Whenever you touch them they get into rock and are hard to catch. Whar are these? Good or bad ? What to do please. Their tentacles are getting longer and starting to bother me as they dont look nice and get covered on algae. In the picture you can see them between the sexy shrimp. In other pic are underneath hanging on rock. The last one is the one I got out.
Thanks guys.
Thanks guys.
