Anyone know what these filaments are ?

[Speedy]

My soft coral has been producing these brown filaments for a while . Any one know what they are? Ps blow up the pic to see the filament on the right (;

 

[Diesel]

Coral poop.
No kidding but you see this very often on LPS or softies.

 

[Speedy]

Cool thanks :)

 

[cloak]

While it might just be pooping, sometimes when the lighting is too intense the coral will expel zooxanthellae too. This is not necessarily a good thing. How often are you seeing this?

 

[Speedy]

Just last couple of days . The lighting has been the same for months . T5 twin blue and full spectrum. The coral looks quite healthy and happy generally