Added new live rock. Help ID

[Tyang117]

Hi everyone,

As stated in title I added a couple of new live rock into the aquarium and got a few hitchhikers. I was able to find out one of them is a starfish, but there are now growth on my rocks that I'm not sure what they are. Hopefully the pictures are detailed enough.

Thank you

 

[reef lover]

1 feather duster
2 grape calupera
3 asternia star

 

[El_Guapo13]

1 feather duster
2 grape calupera
3 asternia star

+1 on all this. Feather duster is a good sign of postive tank parameters, so long as he is open and growing. If he is ever closed for extended periods, it could be a sign that you need to look at your parameters and most likely do a water change. ...I miss mine. Not sure how they both died. Definitely nothing to do with me accidentally knocking over my rocks and crushing them during cleaning my tank.