Aquarium Nitrate Calculator
Calculate the water-change percentage needed to bring nitrate to a safe level.
Water change needed
50%
Change ≈ 15 gal using dechlorinated, temperature-matched water.
Examples
- 40 ppm in 30 gal50% → 15 gal
Calculate the water-change percentage needed to bring nitrate to a safe level.
Change ≈ 15 gal using dechlorinated, temperature-matched water.