What is this tubular thing?

[Texas Reefer]

I have these tubular things in several places in my tank, though I never see anything coming out of them. I wasn't too worried until I saw them on my candy canes. Anyone know what they are? Good or bad? They don't seem to be doing anything.

 

[reef_junkie092]

Just the norm hitch hiker.. Harmless, I have tons of them growing in my reef

 

[redfishbluefish]

My bet is that they are vermetid tube snails. HERE's a link.

 

[Mike J.]

The second picture looks like a Vermetid. Those hard calcareous tubes that are everywhere, especially in a new tank, are called Spirorbidae. They can spread everywhere. I break them off they can become a real pest.

 

[Texas Reefer]

Huh. Thank you!

 

[rako1]

The second picture looks like a Vermetid. Those hard calcareous tubes that are everywhere, especially in a new tank, are called Spirorbidae. They can spread everywhere. I break them off they can become a real pest.

+1 get as close to rock as possable and snap them off they will spread

 

[JMSKI333]

I have a ton of them. They are a filter feeder and their webs might irritate corals from full PE. I only break them off If I see they are irritating a coral. You will never kill them all.