What type of starfish is this?

Does anyone know what type and what I need to feed it? I created an "ugly" intank chaeto container and found him in there, stuck to the chaeto. Should I put him back into he main tank (20 Gallon Long with 2 clarkii clowns)? Sorry for the blurry pics- I really tried changing the macro settings on my camera but this is the best i came up with. Thanks!

 

asterina starfish,mostly considered reef safe,no special care needed.

 

I dunno I'd keep an eye on it though. I had one nearly eat an acro colony up. That being said I have one that only eat algae off the glass so he's not a problem.

 

I've been reading alot online and it seems lots of people blame them for damaging their zoo's. I probably will remove. Thanks.

 

There are different types of them. Seems some will munch corals, but I think most wont. My 55 was infested with them and not one ever munched on any of my corals, including quite of few zoas.

 

I have them eat some zoas before... I love zoas so I said bye bye to the little star fishies