Any idea what this might be?

[ebranger]

Really poor pics, I know, but hard to get a better pic based on tank location. Along the back wall of the tank, behind some rock, this light-colored patch appeared. It’s a corner of the tank my two clowns frequent. Doesn’t exactly look like it, but possibly a cluster of clown eggs. Whenever the clowns aren’t watching, a couple of damsels sneak in and peck and eat whatever it is. Almost disappears but then will be back a week or two later, always roughly the same size.

 

[blaxsun]

It's not a starfish.