Holes in favia skeleton

[jadedog]

Goodmorning,

I was cleaning some algae off my favia yesterday and noticed some tunnels in its skeleton is this normal?

 

[Gumbies R Us]

#reefsquad

 

[Fish Styx]

Good morning. I tried to zoom in to take a look, and it looks like there may be two antennae or appendages in there:

It could be a spionid worm, or mollusk of some sort.

 

[jadedog]

Good morning. I tried to zoom in to take a look, and it looks like there may be two antennae or appendages in there:

It could be a spionid worm, or mollusk of some sort.

Is this harmful for the coral? Thanks

 

[DSC reef]

As long as your coral is growing I wouldn't worry to much. Sometimes you'll find a gull crab that makes those holes and I would just glue them shut if I couldn't get them out.

 

[jadedog]

As long as your coral is growing I wouldn't worry to much. Sometimes you'll find a gull crab that makes those holes and I would just glue them shut if I couldn't get them out.

Ok thank you!

 

[BryanM]

That doesn't look all that concerning to me, though I would probably monitor it.