Jul 24
Cyano (Red Slime) Algae: What It Is and How to Beat It
Cyano, commonly nicknamed “red slime algae,” is one of the most frustrating problems in aquariums. It appears as a reddish-brown, slick, sometimes stringy film or mat that can coat rocks, sand, and plant leaves. Although many hobbyists call it algae, cyano is cyanobacteria—a bacteria-like organism that behaves like an algae bloom. Because cyano grows fast when conditions favor it, treating it effectively usually means addressing tank imbalances rather than relying on quick “sp... Read more »