Anyone know what this is?

[Jimmye4fish]

We bought an anenomie a few weeks ago and there's 3 of these that pop out of the rock. They are pretty cool looking and will disappear fast. Just curious as to what they are and if they are good or bad for the tank. Thanks!

 

[Convict2161]

We bought an anenomie a few weeks ago and there's 3 of these that pop out of the rock. They are pretty cool looking and will disappear fast. Just curious as to what they are and if they are good or bad for the tank. Thanks!

View attachment 146145

Looks kinda like aiptasia or majano.

https://www.google.com/search?q=aiptasia&ie=UTF-8&oe=UTF-8&hl=en&client=safari

Or maybe a duster?

 

[Keithhjs]

Maybe feather duster. Google it & compare. If so, harmless filter feeder. It it's Aptasia or Manjano remove it.

 

[Sniperhank]

That is a duster. No way there is a mouth that massive on a glass nem.

 

[54seaweed]

That is a duster. No way there is a mouth that massive on a glass nem.

I agree

 

[Jimmye4fish]

From the pics I found its a duster. It was a bonus rock I suppose. It brought along about 4-5 small starfish and now two dusters! Thanks anenomie! LOL. Thanks for all the responses. It's appreciated.