Is this a good hitchhiker?

[FirstTry2017]

Hi,
We got a new coral today and it has 4 of these hitchhikers on it. What are they and can we keep them or should we dispose of them? Thanks for the help!!

 

[saltyfilmfolks]

no, aptasia. take it out and scrape it off.

 

[cmcoker]

Aiptasia, bad hitchhiker.
http://www.lionfishlair.com/hitchhikers-guide/aiptasia/

 

[FirstTry2017]

Aiptasia, bad hitchhiker.
http://www.lionfishlair.com/hitchhikers-guide/aiptasia/

Thank you!

 

[telsonman]

There's probably more that you don't see. I just get the coral off and refrag it or glue it to another rock. I wouldn't even put that in my tank until its dead, which for me would be leaving it out to dry.