Coral spit this out, what is it?

[hkgar]

Any idea what it is or why?

I posted in Reef Discussions, but thought I might get better responses here.

Thanks for your help

 

[grcforce327]

Spawning?

 

[XxreeffreakxX]

What type of "coral" spit that out ??

 

[ReefDream07]

Looks like the matter they spit out to protect themselves. Whats around it? Anything that could be in chemical warfare with it?

 

[bobssecrtsn]

looks like mucus, +1 on chemical warefare or possible parasites on the colony?

 

[michael.lemke]

****ed off mucus