Does anybody know what is this??

[Alfredomeinhardt]

All of the sudden these started to appear on the walls. Does anybody know what they are and if I should be concerned??

 

[ScubaFish802]

Asternia starfish

 

[RC Reefer 5184]

Asterina starfish. Some say friend some say foe. They can reproduce fairly quickly. They will also eat zoas from what I have experienced. You can hand pick them out or you could get a harlequin shrimp. But if you choose that route you will need to sell or get rid of shrimp. Because starfish is all they eat and will die if none are left.

 

[ZoWhat]

Asterina starfish. Some say friend some say foe. They can reproduce fairly quickly. They will also eat zoas from what I have experienced. You can hand pick them out or you could get a harlequin shrimp. But if you choose that route you will need to sell or get rid of shrimp. Because starfish is all they eat and will die if none are left.

They eat the dead tissue off softies like zoas.