Weird worms

J_____P · Jul 20, 2022

Saw these small white worms in the live rock I purchased. This is my first tank, the rock was not dipped after picking it up from my LFS. Just wondering if this is a pest or something that is not harmful. There are no fish or coral in the tank and has been cycling for 3 days now. Should I be worried!?

Mushroomsyo · Jul 20, 2022

Looks like a spaghetti worm. Keep it, they are good cuc.

Sean Clark · Jul 20, 2022

@Erin1971Texas help please.

EeyoreIsMySpiritAnimal · Jul 21, 2022

J_____P said:
Saw these small white worms in the live rock I purchased. This is my first tank, the rock was not dipped after picking it up from my LFS. Just wondering if this is a pest or something that is not harmful. There are no fish or coral in the tank and has been cycling for 3 days now. Should I be worried!?

Have you asked your LFS?
Looks like tentacles from a spaghetti worm or other detritivore.
Since you're new to reefing (welcome!), check out some of the sticky threads on this forum to learn about common hitchhikers.