Please ID. Tank growing weird things

[polancoeddie]

I have notice a big change in my tank this past week. I have different things growing every were. 1st is a yellow or orange flower looks like a feather duster it hides when startle.

Second is hard red worms on the rocks they do not move have no idea what it is.

3rd I believe is coroline algae but it has tubes growing upwards.

4th I think is a sponge 1 dark purple some black.

Pictures in order at the bottom. Please help

 

[Reefing Madness]

#1- Feather Duster- Good
#2- Spinoid Worm- Not so good
#3- Sponges- No harm

 

[polancoeddie]

Thanks! ill do research on them.. How about the purple tubes growing upwards?

 

[Reefing Madness]

Yea, just sponges. Possibly Sea Squirt, Tunicate.