What You Need to Know
In recirculating aquaculture systems (RAS), nitrifying bacteria oxidize ammonia (NH₃) to nitrite (NO₂⁻) and then to nitrate (NO₃⁻), maintaining low ammonia levels. Biofloc technology aggregates microorganisms into flocs that assimilate excess nitrogen, providing both nutrient recycling and supplemental feed. Precise control of temperature, dissolved oxygen, and ammonia thresholds ensures optimal fish physiology and product quality.
The Science
Primary Reaction
Ammonia oxidation by nitrifying bacteria (NH₃ → NO₂⁻ → NO₃⁻)