White worm ID came off Live sand

[Brian283]

Hi,
Can anyone tell me what this type of worm
Is? I found several today as I was slowing pouring in Tampa Bay Live Sand.

 

[Reefkeepers Archive]

Lancelet, harmless/beneficial. A kind of primitive filter-feeding invertabrate that likes to bury itself in sand

 

[Brian283]

Thanks! I was worried it was a bad one.

 

[Reefkeepers Archive]

Thanks! I was worried it was a bad one.

Should note they need phyto and copepods if you want to keep them alive