Cyano on rocks and blue algea in sand HELP

[tang lover1961]

I'm using phos-zorb in my filter it has brought my phosphates down to almost 0. My LFS told me to try algae-fix by API. I haven't tried yet trying less time on lights and more water changes so far it hasn't helped.

 

[beaslbob]

Kill your lights for a few days until the cyano dies off. then resume with shorter duration.
 
Then try to find a light duration where the corals, macros, corraline thrive but cyano does not.
 
my .02

 

[tang lover1961]

It's okay to leave the light off for a couple days with the corals? I thought I couldn't do that.