Bought some life rock from the store and there were all these little noodle looking things on the rock I was told they were feather dusters but its been about 2 and a half weeks and they havent opened, moved, or done anything... what could these be?
If they are white tubular and hard they are a form of hard cocoa worm. They dont get big at all prob what you see is all that it will get to. Harmless filter feeders and alot of times they have red dusters when they come out.