Can any one tell me whats on my rock in the middle of the pic. today is the first time ive seen it. it came out when i feed my fish plankton for first time . i was thinking its some sort of tube worm but wanted to be safe.
yea it goes in and out the same hole in the rock. i have 4 in the same rock in different places.it has more then 2 antennae but thats either all that showed up in the pic or all that was out at the time.