With those nutrient numbers I would not suspect dinos but sorry bro/sis, you have some Large Cell Amphidinium. I am sorry because there is not a real solid silver bullet for them. On the bright side they are only ugly and not toxic.
If the tank is less than a year or a little more old, I say let it ride. Just a phase. Search here for link to Amphidinium treatment methods. You have many friends there.
Never seen the spheres before. Shucks, I wanted those bonus points.
If the tank is less than a year or a little more old, I say let it ride. Just a phase. Search here for link to Amphidinium treatment methods. You have many friends there.
Never seen the spheres before. Shucks, I wanted those bonus points.