Weird shrimp or worms?

[Hydrogel]

Hello. Anyone know what this is and if they are bad??

Thanks
Tiffany

 

[Bolicks]

Looks like copepods to me - these are very beneficial!

 

[Srt4eric]

Yep. Looks like a solid pod population.

 

[Hydrogel]

Looks like copepods to me - these are very beneficial!

they are that big??

 

[Srt4eric]

they are that big??

Some can get pretty big especially if in a sump with no predators.

 

[B the Nano Reefer]

Look like amphipods. Hard to tell how big they are in the pic but yes, they can get to a decent size. Good stuff.