Mini Starfish
 

I've just recently noticed that I have probably 20-30 mini starfish trucking along my glass probably about a 1/4" in size and smaller beige in color. I dont have any pics because my camera is at work. But based on that description would anyone know what these are and are they harmful?

Do it look like this?
http://i2.photobucket.com/albums/y4/.../hitchstar.jpg

Yup, thats them.

Asteria or Asterina (Sp) starfish. Mostly alge grazers, but can eat coral in some cases. Just watch them and if they're not on the coral at all......... no worries. I have a bunch of them also.

I have a few of them in my tank, they dont seem to bother anything.

me too, no issues with them eating corals