Help ID some critters

[Cpt J]

Had my tank going for about a half a year. Am fighting aiptasia but think I have that under control. But now I worried about anytging I didn't add to the tank. So if you would please help me ID these tag alongs.

Thank
Justin

 

[Cpt J]

Had my tank going for about a half a year. Am fighting aiptasia but think I have that under control. But now I worried about anytging I didn't add to the tank. So if you would please help me ID these tag alongs.

Thank
Justin

Sorry last pic should be

 

[Lionfish Lair]

The snail is a collonista and is cool.

 

[Cpt J]

Here is a better pic of the first one

 

[reef lover]

The first is a tube worm the last a sponge both good.