Blood Red Slim Patches On Some Lr And One Coral

[sahmof2]

Hi everyone,

I have a 55 gal reef tank that I have had established for 6 months and was setup for three years by previous owner. I was having a problem with hair algae and a small patch of blood red slime (possible algae) on a pipe organ coral. I performed large water changes and added a lawnmower blenny. Now hair algae is gone but the red slime still exist and has spread a little. Water parameters look good. What can I do before it possibly ruins my tank or kill the pipe organ coral?

Please help

 

[sahmof2]

Reading some other topics, this red slime may be cyano. What do yo all know about this stuff?

 

[kkyyllee]

its cyano, add more flow, cut back on nutrient in the tank, if you dont stop it it will smother ur corals