What is this?!?

[Nu-Nu the eel]

Hey guys! Just bought a new coral frag (green star polyps) and when i was driving home i found a cool sea-star on it. It doesnt look like an astrea star because it isnt white, its brown, an its much bigger then astrea stars. Any idea what it is?!? (pic attatched, kinda bad tho because its bumpy in the car lol)

 

[Nu-Nu the eel]

I am almost posative its an astrea star, but i am not 100% yet

 

[MacDracor]

Biggest astrea star I've seen in my tank was almost thumbnail sized. And I have big fingers.
But yeah, that's almost definitely an astrea. They come in white, grey, brown, tan, and even blue. Watch out for the blue ones. They are sometimes reported to be coral eaters.

 

[crister13]

Definitely an astrea. IDK if theyre good or bad, but they look cool. lol. GL with everything.