Understanding the Nitrogen Cycle for New Reefers
Beginner
The nitrogen cycle is the foundation of every healthy aquarium. Ammonia from fish waste is converted to nitrite by Nitrosomonas bacteria, then to nitrate by Nitrobacter. This guide explains how to cycle your tank using live rock, bottled bacteria, or the fishless method. Monitor ammonia, nitrite, and nitrate levels daily during cycling. Your tank is cycled when ammonia and nitrite read zero consistently.