identify black things coming out of zoas.

[KrempelJD]

I noticed these things growing. Harmful? Zoas haven't been growing.

 

[KrempelJD]

......

 

[Sniperhank]

Those zoas don't look healthy at all...closed up and bleaching.

 

[joy13]

Have you happened to dip your corals for pest. Something has them really upset, I don't know what that is in your pic it could be a brittle star fish legs or some kind of real pest.

 

[KrempelJD]

This frag wasn't looking to promising when I got it. My pipe organ, Duncan, and hammer are growing like weeds. This zoa frag was cheap. Just wandering what the black things were. They never move they just get bigger over time. I didn't dip the zoas