Hitchhiker

[mess7777]

picture would help a lot. could be a tranparent flat worm, they are harmless. could be a lot of things. Check out some websites for common hitchhikers or post a picture here.

[Casey8]

It looks almost like a caterpilla ? Brittle worm, I guess.

[JohnnyReeftank]

Ya probably a bristle worm.....I had hundreds survive the cycle....along with a few colonies of Zoas, mushrooms and Palys, which are still thriving today....And I was dosing pure ammonia to speed things up! I was suprised at how resilient some of these species are.

[FishyFishy!]

Could be a pod? Does it look like this -

[Flash]

could be a clear pistol shrimp?!

[FishyFishy!]

This is a more realistic picture of a amphipod



This is what a bristle worm looks like:

[Josh7831]

looking at those pictures id say its a bristle worm,
are they bad for the tank? should i try and remove it?