What is this in my water column?

[Vetekli]

So my tank is two months and ive got some algea. Some gha but not much, but i also have this stuff thats in the water column. It blows around as long as the pumps are on, quite annoying. I get quite a lot out with mechanichal filtration but it seems to multiply faster than i can get it out. Pic is some settled. Any idea what it is?

 

[TX_REEF]

could be dinoflagellates. not uncommon for new tanks going thru the "ugly phase".