[MWARREN]

Can any one tell me if the little star fish is bad ? It is the size of maybe a pencil eraser.It resembles the serpent sea star body and is white. I only saw it for a second befor it retreated in to a rock. I do have a blue linkia sea star,but this has a totally different body shape. I have not added any thing new to my tank for about a year. So i am not sure where it came from since it is so tiny

[DEWAYNE]

I have some of these in my tank, I had bought some new live rock, and a few weeks later there were about 7 of these guys, have not seen any lately, and have no ideal if they are good or bad.

[stacef]

DO the little guys have different length legs?

[STEVE DE]

i have had them popping up in my tank for last few months and had no problem

[pyromaniac398]

A general rule of thumb for starfish, the thicker the arms the more predatory the starfish. A lot of arms will also indicate a predatory starfish. I am sure there are exceptions to this rule somewhere, but for the reef tank it usually works. I would keep an eye on it for while. (If you can find it again )

[adam jenkins]

I have small white ones and some with little black stripes.I've never seen mine bother anything.They eat any extra food.

[combs44]

Probably Asterina Starfish. Some people have claimed to witness them eating coral tissue; however, I have hundreds of the things, and have never witnessed them anywhere but on the glass of my tank eating algae. These are a very common hitchhiker if this is what you're speaking of.

Is this your guy?

Here's a link to some faqs. AsterinaFAQs

[MWARREN]

Thank You For The Help. As For The Picture No That Is Not Like My Little Friend.
Again Thank You I Really Appreciate The Help
Michelle

[combs44]

I'm sorry, I misread your post!! I didn't see that you said it looked like a serpant star. Those I'm not sure about. I do; however, have some mini brittle stars in my tank. They are white also, and have longer stringier legs. Kind of like a serpant, but with little spines sticking off of them. To my knowledge they are harmless, and will probably ultimately die off. Hope that helps.

[Fragmadness]

do they look like this



If so they are hydroids

[MWARREN]

no but thanks for your help. i appreciate it.
michelle