What type of star fish is this

[hirm]

what is this guy

[technoshaman]

looks like an asterina species. They reproduce prolifically in some systems. A small percentage are coral munchers but most are harmless. I have a few on my live rock that I see now and then - have never seen them bother corals.

[matteo_gugliotta]

I have them too and I have the impression that they eat my gsp, so I'm removing them.