Its sort of blury. If you can post this pic in the main Dinoflagellates: Are you tired of battling? thread with shape and movement description. Some dinos are almost completely round, some oval, egg shaped, rice, some look flat. Movement can be spiral, spin and burst, move straight, spin on a needle, etc.
My first round I beat dinos with just nutrients but gained a lot of hair algae. I screwed up and went for gfo for a day or two to help and round 2 happened.
Added UV and live rock and let the tank rebalance the natural route(might be a theory?). Natural route is no WC, no dosing anything, feeding fish a little more, letting detritus build. Took 30 days then a water change. Alk naturally fell from 8.5 dkh to 6.6 dkh in that 30 days. No sps or other coral losses. Since bioload was low, i added more fish too.