What is this?

[mbscuba]

Are these bad or good? This is a video of green star with crawlers
http://www.youtube.com/watch?v=RTy3N6XKdVs

 

[kev apsley]

looks like copepods and amphipods...harmless

 

[chad508]

just pods and yes there great for the tank

 

[iluvmyfishes]

Watch the amphipods, I'm pretty sure mine ate my zoos.