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Aquarium volume and stocking calculator

Net litres, water changes and cautious fish screening

AQUARIUM PLANNING

How much water does the tank really hold?

Calculation resultUpdates instantly
estimated net volume95.2 L
Result details

The space taken by substrate, rocks, wood and unfilled headroom is removed from gross volume.

Inside the result

Updates as you change the inputs
Gross volume112 L
Water to replace28.56 L
Dose for the change14.28 ml
Theoretical filter turnovers5.25 ร—/h
Indicative cautious count9
Pressure versus guideline88.9%
!

The screen is not a safety guarantee. Always use adult size and check the needs of each species.

Stocking is only a cautious screen based on adult length. Species, behaviour, surface area, filtration, cycling and water quality remain decisive.

DOES THE RESULT LOOK WRONG?

Help us improve this calculator.

HOW IT WORKS

A result to understand, not just read.

Enter the requested values in Aquarium volume and stocking calculator and change them to compare different scenarios. The result is an informative estimate and does not replace official documents or professional advice.

  • The calculation runs in your browser and the values you enter are not stored.
  • Compare several scenarios and check that the starting data are correct.
  • For financial, tax, health or veterinary decisions, also use official sources and qualified professionals.

OFFICIAL SOURCES

rspca.org.ukโ†—

FREQUENTLY ASKED QUESTIONS

Is the result exact?+

It is an estimate based on the values entered and the stated assumptions. The real result may differ.

Are the values I enter stored?+

No. Values used in the calculator are not stored.