i got a blue starfish few weeks ago and after three days i got it i surpriselly found a baby starfish walking on the front side of glasses. i don't know where it is now, maybe died or hiding in somewhere. please let me know if you have seen this in your tank or it is not a baby starfish at all.

thanks

25g nano reef 2 months so far

looks like an asterina star fish

http://www.nano-reef.com/invertebrates/?id=9

I guess you re right. it looks so like eachother. then it must not be the one from my blue starfish might just brought by some live rock or corals i bought home. Very interesting... lol

Its not. Its most likely a hitchhiker from somewhere. You will either like them or hate them depending on how fast they breed in your tank. They reproduce by fission by the way which means they split themselves to make a new one.

It's an asterina. I have no problems with these little guys. Just watch to make sure they don't get out of hand. Some folks have had them take over their tanks.