Aquarium Water Change Calculator
Plan your water change schedule. Calculate how much water to change, how often, and the impact on water parameters. Optimize your maintenance routine for your specific setup.
Water Change Volume for Target Nitrate Reduction
Calculate the water volume needed to reduce nitrate from current to target levels. Typical water change: 20-50%.
Frequency Recommended Based on Bioload
Get water change frequency advice. Low bioload: 14 days, Medium: 7 days, High: 5 days.
Temperature-Matched Water Volume
Calculate how much temperature-matched water you need. Temperature difference should be ≤2°C/3.6°F.
Dechlorinator Dosage Required
Calculate the exact dechlorinator dose. Standard dosage: 1-2 ml per gallon or 0.25-0.5 ml per liter.
Calculator
Measure with nitrate test kit or test strips
Calculation Results
Recommended Water Change Volume
To reduce nitrate from 0 ppm to 0 ppm, you need to change 0 gallons of water.
This is 0% of your tank volume.
Water Change Frequency Recommendation
Based on your bioload level, we recommend changing 0% of water every 0 days.
Dechlorinator Dosage
For 0 gallons of water, you need to add 0 ml of dechlorinator.
Temperature Matching
Prepare 0 gallons of water at approximately 0 °C for water change.
