What eats these starfish?

I have these nasty little blue astrena or whatever starfish and they have been a bit destructive. One ate a perfectly healthy and growing acro today and i know this little bugar is the cause... What kills or eats these?

 

Harlequin Shrimp.

 

I'm sure I'm gonna spell this wrong but, harlquin shrimp will eat them..

 

but i wont be able to sustain them after they eat the starfish... and they are not aggressive enough to go through the rockwork, are they?

 

after all star fish are gone ether get rid of the Harlequin or buy a star fish one time a month and cut it up and feed it to the Harlequin

 

I think so bigB----If anyone knows for sure please let us know.

 

Harlequin Shrimp will attack the central nervus system of the starfish and eat them.. The Harlequin shrimp will die without having a starfish to eat..

 

yeah i got one and love it, if you have as many as you say they will control the population but not decimate it. and if it does simply buy a $10 CC star and put it in your sump and whack a leg off now and then. I dropped a cc star in my reef and that little guy didnt take 10 secs to get to it and start eating away.

 

pet stores can order you irregulars star fish for cheaper that are deformed missing a leg or half a leg

 

lindsay buy a harliquin shrimp they work wonders on those star fish i had 1 in my 300 but unfortunatly it swam into my green carpet when tearing down my 300 i will be getting another one as soon as i set up my new 300 there are the neatest little shrimp and very peaceful to everything but stars.

 

Are you referring to the long legged green star fish that live under rocks? when I feed there legs appear out of the rocks feeling for food... Whats the cure?

 

No those are brittle stars asternas are little white stars that climb all over your glass at night when the lights are off

 

Thanks