ID needed please

[electrocuted]

This is my first attemp at posting a pic. I hope it is clear enough.
I'm almost positive these were not here last night. There are 7 of these "sacs" all on the same wall of the aquarium. Are they snails eggs?
Any help would be appreciated.
Thanks

 

[nm reef]

Almost looks like a burst bubble algae sac......that'd be my guess.

 

[electrocuted]

I have noticed 2 small blooms of bubble algae in the last month. I have read about taking the rock out of the tank and attempting to remove the algae from the rock with bursting it, but I have not gotten around to it. I will remove the bubble algae today, but how should I handle these sacs?
Thanks NM.

 

[electrocuted]

bump