Aquarium volume and stocking calculator
Net litres, water changes and cautious fish screening
AQUARIUM PLANNING
How much water does the tank really hold?
The space taken by substrate, rocks, wood and unfilled headroom is removed from gross volume.
Inside the result
Updates as you change the inputsThe 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.ukโFREQUENTLY 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.