Interactive tool

Grow-Out Capacity Planning Worksheet

There is no universal litres-per-fry rule. This worksheet makes your assumption visible so it can be checked against species, behaviour, filtration and maintenance.

Freshwater focusWelfare-firstUpdated July 2026

Capacity is more than volume

Use the estimate alongside adult size, growth rate, aggression, feeding access, filter maturity, floor area and your maximum maintenance workload.

Tool limit: This calculator or log supports planning only. It does not diagnose disease, set medication doses or replace species-specific husbandry.