TANGS!! Red sea purple tang to be exact. Personally, I'll manually remove the obvious ones with every water change. When I accidently pop a few the tang will usually eat the "shell". I've noticed they have a problem getting their jaws around the bigger "bubbles" so if you pop it, consider it chow for the tang.
The smaller "baby bubbles" are easily consumed by my tang.
Not only does the tang eat bubble but it'll eat other algae too, their great at pecking at the rock all day getting watevers, which is important bc algae growth saps your MAG levels!!
In combination with my tang, I have a long spined urchin which are monsters when it comes to eating algae.
good luck dude -