New addition to my tank

[Blue Tang]

I have these little critters in my reef tank that have just appeared and they are like a starfish but do not really have five arms. They are whitish in colour
Does anyone have any thoughts as to what they may be? I'm not sure if they will harm any of my coral or not.

 

[kres1024]

Sounds like asterina starfish not harmful but their population can get big , Harley shrimp are good to keep population down ,but when the harlequin shrimp eat them and you run out of food gonna need to feed the Harley's ..

 

[Blue Tang]

Thank you very much for the feedback. And I did search this and do believe that you are correct. And they are the harmless species.

 

[al0ha]

some eat zoas so be careful

 

[Juggernot55]

And coraline