🐠 Aquarium Water Volume Calculator
Calculate your aquarium’s water volume, water changes, heater and filter requirements.
Gross Aquarium Volume
Estimated Usable Water Volume
Estimated at approximately 92% of gross volume to account for substrate, decorations and water level.
Water Change Amounts
20%
30%
50%
Recommended Heater
Recommended Filter Flow
Based on approximately 5–10 times the usable aquarium volume per hour.
Note:
These are general recommendations. Actual requirements can vary
depending on fish species, stocking level, room temperature,
aquarium location and filtration setup.