White Dots on Glass, Eggs?

I was out of town a couple days for a wedding and just got back to find these white bunches of Dots in a few different spots in my tank against the glass. I did get a CC from reefcleaners couple weeks ago but never seen these before. Can someone tell me what they might be? Snails eggs maybe? If so any idea what snail?

 

I would say Narcissus eggs, but the pics are too large and blurry. But that would be my guess.

 

I'm interested to see if anyone can answer this, as I have had the same white dots pop up basically overnight. One day I had a few on a piece of live rock and now I have them on the back glass and overflow. I have a pretty new tank and I just put in a CUC from reefcleaners the other day. I have had Nassarius eggs before and these don't look like they did, although maybe these are semi matured eggs.

 

Those are nerite snail eggs. They pop up overnight because they're mostly nocturnal.

 

Agreed. K+ I have those on rocks and glass.

Brian

 

Ok, thats what I was thinking because those are the snails that spend most of their time on the glass and after adding them recently it makes sense. Any advice on care? Will they survive and hatch or what should I expect?

 

Ahhh yes silly me, yes nerite, sorry. :

 

They usually don't hatch, since they need more brackish water to do so.