Does this look like dinos, or something else?

[konatown]

I know we probably need a microscope for confirmation, but here’s some quick facts, and a video of the problem below.


It basically disappears at night, see video of daytime, and photo of first thing in the morning where it is mostly absent.

I’ve been doing water changes regularly up until two weeks ago. I’m testing nitrates with salifert, always between 3-5. I just got a salifert phosphate and it is at 0. Ive been using an api test and apparently getting false .25 readings, so I’m glad I got the salifert. I had a bag of gfo in the sump, I took it out a few days ago.



Let me know anything else that is needed, and any tips are appreciated! Also.. could this be causing my gsp to stay closed? Been closed for a few days



Video of daytime problem

- YouTube

Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.

youtube.com

Photo of first thing in the morning, 99% disappears

 

[sixty_reefer]

Most probably photosynthetic dinoflagellates

 

[konatown]

Most probably photosynthetic dinoflagellates

Do you think that is what is ticking off my gsp by the pot? It has been happening for a couple weeks, but gsp stopped opening a few days ago. Ever since I had a skimmer overflow, there was a phosphate spike, then now back to 0 phosphate in a weeks time. Most other corals are happy though..

Thanks