Microscope id- Dinos?

[katsreef]

Used a microscope on some of this stuff. Is it dinos? I tried wiping it off the rocks today and it was suspended in the water column and just recollected back on everything. It’s stringy but the colour reminds me of cyano.

 

[katsreef]

I attached a vid- some are moving and some spin around in circles.

 

[taricha]

I lean toward prorocentrum for these.

 

[DaJMasta]

I would agree dinos, don't know my dinos well enough to ID specifically. Cyano would generally be strands of many small orbs, and diatoms generally have a symmetrical/geometric look to them. Image 5 is the salt crystals that form as the water evaporates, and I think the strands you see are fibers - did you collect with a Q tip?