This white stuff Was on my cinarina last night

[Koty]

 

[ying yang]

Mesementerial filaments,basically Insides if the coral.
Check my spelling g maybe wrong

 

[Koty]

doest it mean anything regarding the health of the coral? During the day it looks normal

 

[Lemons]

doest it mean anything regarding the health of the coral? During the day it looks normal

Ehhhhhhh sometimes, sometimes not. As long as it looks normal in the morning they may have smelled something yummy or trying to attack something.

Normally 90% of the time they go back to being fluffy little goobers in the morning

 

[ying yang]

When Corals Spill Their Guts

One of the more common and often more disturbing observations for many newer reef hobbyists is seeing their corals extend their mesenterial filaments. Reactions

reefs.com

Little article on them.

I know a few off mine do it at night and corals been ok for over a year,as yours dont do it at day