Is this just cyano?

Artimusclyde1974

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It’s been growing in my tank and mats my macro algae also forms long strings that stick to my corals
It’s starting to die back pretty heavy but always seems to come back I have no microscope so I hope this pic helps

image.jpg
 
It blows off easy I have tried hydrogen peroxide it seems to fix it but it just grows back
 

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