Algae issue

[Ineedhelp]

I had red slime all over my sand bed and thought for sure it was Cyano, Ive done a 48 hour black out and its turning into what looks like GHA. is this it just dieing or did I miss identify. Ill be able to post pictures in a bit.

 

[twilliard]

Check out my link below for proper ID

https://www.reef2reef.com/threads/positive-identification-of-cyanobacteria.253287/