What is it?

[120gallons]

What are these?

 

[Woodstock]

 

[Woodstock]

Maybe a (Cirratulid sp) speghetti worm of some kind?

Worm Hitch Hikers
Spaghetti and Hair Worms… What’s in a Name? by Ronald L. Shimek, Ph.D. - Reefkeeping.com

 

[Boomer]

That would be my guess also Doni a Cirratulid

 

[SoccerBum474]

where are you finding these? i have a simalar things growing in my canister filter.

 

[tbaquatics]

ughh

 

[120gallons]

They are tiny, maybe 1/4 inch tops. Tank has base rock, snails, crabs, and a few fish....not sure where they could have come from.

 

[tidalzone]

There a type of tunicate safe and actualy a good sign of a healthy system

 

[Boomer]

They are tiny, maybe 1/4 inch tops.

Sound like Scypha Sponges

Scypha - Google Image Search

 

[tidalzone]

Sorry my bad sponge