Dinoflagellate ID

[SouthSko]

Hello fellow reefers. Any idea on exactly what I'm looking at? Brown, stringy and bubbles. Please see attached photos.

edit: I run UV

Thanks.

 

[Dan_P]

Hello fellow reefers. Any idea on exactly what I'm looking at? Brown, stringy and bubbles. Please see attached photos.

edit: I run UV

Thanks.

Ostreopsis