Help needed Algae ID

[kentishreefer]

What Algae is this? Grows quickly and it gets caught into coral and kills that part off.

Been siphoning out every few days.

Thought it was Dino’s but it doesn’t have bubbles so what could it be?

Nitrates are around 10

 

[bubbgee]

probably cyano if it's reddish in color. can't confirm unless you take a pic under white lights.