Things popping out from new live rock

[Keijo]

Hello,

Can anyone identity these for me? The tank is now about 3 weeks old and these things are starting to pop out from live rock. They are now about 2-4 mm long white/green thingies, coming through the diatoms and hair algae. There is about 4 of these in that particular rock.

 

[Oldreefer44]

look like vermetid snails. Moist people consider them pests as they can irritate corals. Best to address them now as they will multiply. Most people superglue the end keeping the snail locked on its shell until it dies.

 

[KJ]

Neomeris algea.

 

[Keijo]

Neomeris algea.

Yes, images on web match! Thank you for your help!

 

[KJ]

Thank you for your help!

YW