Odd Bubbles

[rpayne]

Hi there... I am new to this forum (and marine) in general, so I am sorry if this is a stupid question!! I am cycling my new marine tank, and introduced live rock about 10 days ago... On one of the pieces, I have these really odd glass type bubbles forming.. Most are transparent, and an odd shape... Would anyone have any ideas what they are or what could be causing them?
Many Thanks!! Rob

 

[ccCapt]

Welcome to AA!
They are dinoflagellates. Here's a great article on what to do about them.
Problem Dinoflagellates and pH by Randy Holmes-Farley - Reefkeeping.com

 

[Feelthereefer]

I would say sounds more like bubble algea...

 

[rpayne]

Thanks very much!! much apprecaited..!