What is this!?

[Simon Hills]

Hi All,
Hoping someone can give me an answer regarding this black growth thing on the stem of some of my Zoa's.

Thanks in advance.

 

[Ron Reefman]

OK, lets start with hello and welcome to R2R!


Now this is just a guess based on the bigger one looking like it has holes or pores in the photo. A better close up would help. Also, are thet soft or hard? Have you tried to pull one off?

My first choice is a sponge. But I'll be honest and admit that from the photo and lack of other info, it's just a semi educated guess.

Lets get some other educated guesses! #ReefSquad

 

[Hemmdog]

Welcome to reef2reef!

 

[ngoodermuth]

Welcome! Unfortunately, I'm not sure what they are... hopefully you get a few more ideas soon!

Edit. Just a quick search, but found this on another forum... looks similar maybe? This was determined to be some sort of sponge... so, maybe a very good educated guess from @Ron Reefman

 

[Blue Chrome]

they look like black sponges and should come off fairly easily. Also, next to the left circle appears to be a couple of hydroids that you should remove.

 

[Jeight]

Welcome to R2R!!!

 

[reef lover]

Welcome to r2r ! +1 sponge

 

[Mastiffsrule]

 

[Tibi]

I have similar in mine

 

[Tibi]

 

[Mastiffsrule]

2 welcomes in 1 thread! Like seeing the rare dodo bird....

@Tibi #WelcometoR2R. @Crabs McJones

 

[Crabs McJones]

I would guess a sponge of some type as well. It's actually pretty common for zoanthids to have sponges growing amongst them.
Welcome to R2R!