asterina starfish on zoa

[MNFish]

I have had some unexpected zoa loss lately so I went at it with a flash light tonight and found this:

I actually found 3 or 4 asterina starfish on my zoas, from the way I understand it very few of these eat coral however I am missing zoa and found these on or near the missing ones so I am thinking they are to blame?

 

[vetteguy53081]

I have caught asterina more than once killing zoas and they took down a colony of bam bam zoas
I removed them by hand one by one until gone
They multiply like mice so act soon

 

[fishguy242]

hi, manually remove ,to help keep #'s down.