Glossary
Cyanobacteria (cyano)
Bacterial red / black slime that sheets across surfaces.
Bacteria, not algae. Releases bubbles when stirred. Loves low flow. Treatment: increase flow, reduce nutrients, last resort Chemiclean.
Recommended
Chemiclean for severe outbreaks. Phosphate checker for the root-cause work.
Boyd Chemiclean (cyanobacteria treatment)
Erythromycin-derived. Kills cyano in 3–5 days.
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Hanna Phosphate Checker (HI-774)
Low-range phosphate, essential for ULNS tanks.
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