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A fish tank size calculator determines the minimum aquarium volume needed for a given number and size of fish. The classic "one inch of fish per gallon" rule is a starting point, but fish bioload, behaviour, and water filtration capacity all matter significantly.
Guida passo passo
- 1Apply the inches-per-gallon guideline: each inch of adult fish body length needs 1 gallon
- 2Adjust for fish type: schooling fish need extra swimming space; territorial fish need more room per fish
- 3Small fish (< 5cm): ~2 gallons each | Medium fish: ~5 gallons | Large fish: ~10 gallons
- 4Always round up and choose a larger tank — bigger tanks are easier to maintain stable chemistry
Esempi risolti
Domande frequenti
What is Fish Tank Size?
A fish tank size calculator determines the minimum aquarium volume needed for a given number and size of fish. The classic "one inch of fish per gallon" rule is a starting point, but fish bioload, behaviour, and water filtration capacity all matter significantly
How accurate is the Fish Tank Size calculator?
The calculator uses the standard published formula for fish tank size. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.
What units does the Fish Tank Size calculator use?
This calculator works with centimetres, inches, gallons. You can enter values in the units shown — the calculator handles all conversions internally.
What formula does the Fish Tank Size calculator use?
The calculator applies the standard formula for this type of calculation. See the 'How It Works' steps above for the detailed formula breakdown.
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