The API Nitrite (NO₂) Test Kit provides fast, accurate testing of nitrite levels in freshwater and saltwater aquariums. Nitrite is produced in the aquarium by fish waste and uneaten fish food. Low levels of nitrite inhibit respiration and suppress the immune system; high levels cause suffocation.
The kit measures harmful nitrite from 0–5.0 ppm, helping prevent fish stress and toxicity during cycling or water quality issues. Suitable for all aquarium types, including community tanks and quarantine systems. Includes test solution, test tube, colour chart, and instructions.
Key Features
Provides clear, colour‑coded results for quick interpretation
Designed for routine monitoring during tank cycling and maintenance
Long‑lasting kit with up to 180 tests included
Suitable for all aquarium types, including community tanks and quarantine systems
Non‑staining glass test tube with secure cap for repeated use
Specifications
Test Type: Liquid drop test kit
Tests Included: 180 tests per kit
Range: 0–5.0 ppm nitrite
Included Components: Dropper bottle of test solution, non‑staining glass test tube with snap‑tight cap, colour chart, and instructions
Suitable For: Freshwater and saltwater aquariums
Use Case: Detects toxic nitrite produced by fish waste, overfeeding, and biological filtration processes
Water should be tested for nitrite every other day when your aquarium or pond is first set up, and once a week after the biological filter has been established (in about 4-6 weeks).
