Aquarium Calculators

Browse all aquarium calculators in one place. Live tools have an Open Tool button; others show Coming Soon.

Why Use These Calculators?

Accurate numbers reduce guesswork, keep fish healthy, and help maintain stable water parameters. Sizing gear correctly avoids failures, overheating, and water quality swings that stress livestock.

Tips for Best Results

  • Measure internal waterline dimensions for volume-based tools.
  • Use reliable test kits for pH, KH, GH, ammonia, nitrite, nitrate.
  • Subtract substrate/rock displacement when dosing or changing water.
  • Apply changes gradually, monitor livestock closely, and log results.
  • Quarantine new fish and plants to prevent introducing pests or pathogens.

Disclaimer

These tools provide estimates for educational purposes. Cross-check with other sources before making significant changes.

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