New things popped up in the tank any idea what these are?

[Joe_Fish]

So there's two new things that well I didn't put in there that I've no real clue what they are.    The first is this little blue thing,   it seems to move around a bit,   not much just kind of ends up in a new spot now and then though I haven't actually seen it move.  so it could just be rolling around for all i know.




The second might appear to be some coral?   Both are small hard to get a good picture of them really,   but its red in color almost appears to maybe be some sort of hard coral.   Not real sure?

[jfishwild]

the first picture is called a astrea starfish some people think they are good some think they are bad. but if they are not put into check they can take over a tank.
the second picture looks like a baby nem. hard to tell in the picture.