Red worm like thing

[ScottyD36]

I moved one of my frags and underneath it this appeared in the sand. I plucked it out with tweezers and I am trying to identify what it is.

 

[Sharkbait19]

Hard to tell, but I think it may be a peanut worm.
Is it flat or kind of round all over?

 

[ScottyD36]

It’s round but then when it moves it flattens out.

 

[Sharkbait19]

@KJ
@vetteguy53081
@Mibu
Might be a flatworm, which you don’t always want. When in doubt, throw it out!

 

[Goaway]

Hmm, weird. I never seen a flat worm move like that before. Type of sea slug. Have you noticed anything decline in health?

Can you get a close up of the critter?

 

[Goaway]

This is kind of a small peanut worm. They can retract to where the mouth is fully hidden.

 

[vetteguy53081]

Peanut worm which is completely reef safe and will clean up leftover food and a little detritus.

 

[Sharkbait19]

Peanut worm

This is kind of a small peanut worm. They can retract to where the mouth is fully hidden.

Thanks for the confirmation!

 

[ScottyD36]

Hmm, weird. I never seen a flat worm move like that before. Type of sea slug. Have you noticed anything decline in health?

Can you get a close up of the critter?

 

[Goaway]

Peanut worm. safe little guy like vetteguy said. Gently place back into aquarium.