help ID

[chrome209]

I found three little clear/white bubbles hanging on to on of my rocks would they be eggs of some kind

 

[viper_930]

Could be just plain O2 bubbles.

 

[chrome209]

thats what i thought at first but its like a little sack w/ a little hole at the top and the base of it as a little brown stem type thing

 

[chrome209]

bump