WHAT IS THIS??? HELP IDENTIFY PLEASE

[LAReefer4Life]

So I was cleaning my sump and came across this interesting find. Can anyone enlighten me on what these clear bubble sacks are exactly?

Thank you!

 

[James M]

Bubble algae and a vermetid snail

 

[LAReefer4Life]

Bubble algae and a vermetid snail

Thanks! I thought bubble algae was green? These are clear. Is there different kind of bubble algae?

 

[James M]

Thanks! I thought bubble algae was green? These are clear. Is there different kind of bubble algae?

If I’m not mistaken they turn clear when they’re about to spread

 

[LAReefer4Life]

If I’m not mistaken they turn clear when they’re about to spread

Good thing I discarded them along with the vermetid snail. Thank again for your help