What is on this montipora?

[JerryThomas]

I got this White thing on my montipora..There is no polyp on it, what can it be?

 

[Kevin Junkin]

looks like a dead spot due to some kind of pest

 

[JerryThomas]

Iodium can help?
They look like bites.

 

[sebastiaan1985]

Looks like bite marks for monti-eating nudibranchs..

Give it a good dip and perhaps add some wrasses to your system.

 

[JerryThomas]

This is what i found After a dip in betadine solution..is that a nudibranc? (it was 3 in total)

 

[sebastiaan1985]

Not really sure, (since I'm no expert), but this looks more like a pod to me.

 

[Triggerjay]

That's a pod in the last pic. Typically montipora nudibranch will eat a coral from its edges in. This is in the middle of the colony. Looks to be an injury from a scrape, or possibly a fish took a nip. Doesn't look like nudi's to me.

 

[fishboys]

Maybe a sting from a softy