do urchins eat dinos

[GSnake]

I got a tiny bit of dinos growing, and a lot of thick red coralline.

if i get small tuxedo / pincushion im sure it will go to down on the coralline, but what about the dinos?

I dont have many dinos but they are creeping on my coral space
i think its just spiny astrea / turbos that will eat them. what about urchins?

 

[EricR]

Without getting into different toxicity levels of different species of dinoflagellates (since I'm no expert), I'll just say that I don't think many have successfully combated "problem" dinos with CUC/predators.

My pincushion urchin never touched the mostly ostreopsis dino outbreak I had in the past.

My personal recommendation would be to start with ID (type of dinos) by getting pictures/video under microscope and posting in one of the Dinoflagellates Treatment threads on here.
*after that, you can better plan an approach,,, but that's just me