That looks like slime algae to me. It's not stringy, snotty and bubbly, which would suggest dinos. It's not dusty, which would suggest diatoms. To me, it's just plain old cyanobacteria.
I think it looks like dino's, those are just what mine looked like before they were really stringy and bubbly. This is crazy, I don't understand why everyone is getting them.