What is my bergia nudibranch doing?

[minnowme]

Hello R2R. Name is Mike. I have a question about the bergia nudibranch behavior. I have fortunately seen one of the bergia nudibranchs I introduced to my tank from
About a month ago, last night. It’s much larger and more robust than when I first introduced it. So, all is well for at least one
of the 4 nudibranch which I put into my reef.
MY QUESTION: I noticed a spiral like white thing in a hole, on the rock, right near where I spotted the bergia. Can anyone
tell me what it is? Thankyou!
-Mikey

 

[Katrina71]

Those look like nudi eggs to me.

 

[Crabs McJones]

your berghia are laying eggs

 

[alton]

Congrats on a egg string. I was always told you need as least two to get eggs, so there must be a second one in hiding. Your aptasia problem is getting ready to get much less of a problem. Watch the glass for egg strings too.

 

[minnowme]

Thankyou everyone. I introduced 4 into my tank about 4 or 5 weeks ago. I am
Excited!