NTlabs Nitrite Test Kit

The NT Labs Nitrite Test Kit gives aquarium keepers an accurate, easy method to check nitrite levels (NO₂) — a critical parameter that must always remain at zero for healthy fish. The kit uses a simple liquid-reagent method: collect a 5 ml water sample, add the provided reagent drops, shake and wait for the colour change. After two minutes, compare the colour against the supplied chart — even a faint pink tint signals nitrite presence. With up to 40 reliable tests per kit, it’s essential for monitoring water during cycling, stocking, or routine maintenance and helps you catch harmful nitrite spikes before they stress or harm your stock.