Zoas black stringy stuff IDs

[Aquabetta]

Hi reefers,
As the title says, This is the first time I've seen these black stringy stuff from my zoas, is that a disease or Brown jelly or just poops?
Thank you

 

[iKenreef]

poop

 

[Aquabetta]

poop

Thank you. Well, it's a lot...compared to torch or other euphylia corals LOL

 

[coralfishreef]

poop

It happens