Euphyllia torch coral black thread ID

[nikolamk]

Hi,

Can anyone tell me what is this black thread that coming from my euphyllia torch coral. This is happening several times pass weeks ( not the same coral head every time)

Is this good or bad?

Thanks in advice

 

[Gar3th]

Looks like it's expelling waste to me. Is it stringy black/ brown?

 

[nikolamk]

Looks like it's expelling waste to me. Is it stringy black/ brown?

I think that it is stringy and yes the color was black/brown

thanks

 

[mcgyvr]

yep.. coral poop strings..