4-arm star ID?

[SuncrestReef]

I just discovered the first star in my tank. It has 4 arms, and is about 1/2" across. Can anyone ID it?

 

[Mikedawg]

Looks like a common Asterina; some species are claimed to damage coral.

 

[ChiSox Rabbitfish]

Looks like a common Asterina; some species are claimed to damage coral.

Agree asterina it will grow more legs usually when they drop a leg that leg becomes another star I have some in my tank with 6 legs some with 3

 

[SuncrestReef]

Looks like a common Asterina; some species are claimed to damage coral.

Thank you. I’ll keep an eye on it.

 

[ChiSox Rabbitfish]

The best way to get rid of those if the get to bad is a harlequin shrimp only problem is once it eats all the stars the shrimp will die of starvation