at first glance i would say cyano but i would look into dinos as well as im thinking it could be that.
cyano bacteria i imagine you would have seen in the 10 yrs of reefing , but dinos is very similiar to cyano in looks but is much harder to get rid of. dinos is usually a mix of colors and alot of bubbles hanging on strings.
cyano grows more in sheets and has bubbles attached to the sheets.
dinos = dinoflagellates
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