can anyone ID these critters?

djboozealot

New Member
i am new to the saltwater scene, actually to fish tanks in general, so i don't know what anything is. i bought a live rock from my local fish store when i started the tank, and on the rock was a pencil urchin. now, 6 months later, i am seeing little organisms crawling around on the rock and growing here and there, i was hoping you guys can tell me what they are and if they are good/bad.
here's a picture(i left it really large so you can see detail), i circled the things i have in question, and pointed an arrow to one of the MANY while little things, which look like little worms curled up. the white things don't move at all.
 
A

azul1994

Guest
The first one you circled is a bristle worm the rest I have no idea.
 

reefkprz

Active Member
oval circle = bristle worm - detritivore harmless to your tank spines can be painfull when stuck in human flesh
arrow= cant tell
circle= spirorbid worm- harmless filter feeding serpulid polychaete
 
Top