Id this please

[maxter]

Yesterday when i was washing my filter sock i saw like 5 of those little worm in there heres some pics i took this with my cellphone camera

http://img.tapatalk.com/d/13/10/19/qutu3yqa.jpg
http://img.tapatalk.com/d/13/10/19/7y7u3ady.jpg
http://img.tapatalk.com/d/13/10/19/yge2e3ap.jpg

[Calappidae]

Can't tell on my end, either nudibranch or amphipods IMO.

[WrongGenotype]

Looks like amphipods

[maxter]

Let me google that lol