Need help with an ID...

[B's Reef]

Well I’m having a little issue. Seems it has gotten out of hand pretty quick. Can you tell what this is from the pics?
I don’t see any air bubbles at all, anywhere. So hoping not Dino’s. Was thinking Cyano but chemiclean isn’t doing anything to it.

 

[sixty_reefer]

What’s your no3 and po4

 

[B's Reef]

PO4 is .021
No3 fluctuates between 2 and 5

 

[Ajayabb]

Having gone through this, looks like Dinos to me