Stocking Calculator
Estimate stocking percentage with fish size, bioload, and minimum group/tank constraints.
Add Fish
Selected Species
No fish selected yet.
Capacity (inch rule)
30.38
Current Load (inch)
0
Stocking %
0
Bioload-adjusted %
0
Warnings
No warnings. Continue checking behavior and water parameter compatibility.
Related Guide
Stocking should be evaluated with filtration, water change routine, and species behavior together.
Use this tool to estimate load, then verify compatibility and territory needs before final decisions.
Keep a margin below 100% to reduce stress and improve long-term stability.
FAQ
Is one inch per gallon always accurate?
No. It is a baseline rule and must be adjusted by species behavior and bioload.
Why use bioload index?
Different fish produce waste at different rates even with similar body length.
What if a species is schooling?
The calculator warns when minimum group size is not met.
Can I use this for aggressive fish?
Treat results as volume guidance only. Behavioral compatibility still matters.
What if fish data is missing?
You can still enter manual values as a fallback.
Did this answer your question?
The inch-per-gallon rule is a simplified guideline. Real stocking capacity depends on filtration, water-change routine, and species behavior. Results are estimates based on general guidelines. Individual species may have specific requirements.