Is this a starfish?

[Ellemarley]

It sure looks like one... but I thought they had 5 points, not six?

And a quick phone pic of the tank tonight, with this creature in the upper right...

 

[hogfanreefer]

Asterina starfish. Pretty benign but can multiply like crazy.

 

[supertony]

Asterina can have any number of legs because they reproduce by fragmentation. And if they get out of control...hey, good excuse for a harlequin shrimp!

 

[Spar]

i thought they were cute at the beginning until they got out of control. i ended up having thousands of them. and they eventually started lawnmowering all of my Zoa's. I added in 2 harlequin shrimp and they decimated the population within a couple months. so have those little shrimp (as supertony mentioned) on your wish-list

 

[Sk8r]

Don't get the shrimp unless you have a huge supply, which is quite rare to have. Most tanks acquire a couple, over time. They don't multiply unless they have conditions or a lot of food they really like.