What is the maximum stocking density for tilapia?

Tilapia can be stocked at up to 50 kg/$\text{m}^{3}$ in well-aerated recirculating systems. However, densities above 35 kg/$\text{m}^{3}$ (70% of max) require excellent water quality management and supplemental aeration.

What is the maximum stocking density for salmon?

Atlantic salmon are typically stocked at a maximum of 25 kg/$\text{m}^{3}$. Welfare guidelines in many jurisdictions recommend staying below 20 kg/$\text{m}^{3}$.

How does stocking density affect fish health?

Overstocking leads to oxygen depletion, ammonia buildup, increased disease transmission, fin damage from crowding, chronic stress, and poor FCR. It is one of the most common causes of production loss.

How do I convert between units?

Stocking density is expressed as kg/$\text{m}^{3}$. To calculate: Biomass (kg) = (Number of Fish x Average Weight in grams) / 1000. Volume ($\text{m}^{3}$) = Tank Volume in Liters / 1000.

Stocking Density Checker

Check if your tank stocking density is within safe limits for tilapia or salmon. Species-specific biomass risk assessment.

AquacultureStockingClient-Side

Tool info

Tool information

About, related tools, and citation

About This Tool

Method: Maximum stocking densities from FAO guidelines and RSPCA welfare standards. Risk tiers: safe (≤70% max), caution (70–100% max), danger (>100% max).
Last Validated: 2026-04-08
Privacy: 100% client-side

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How to Cite

ConductScience Aquaculture Stocking Density Checker (v1.0). ConductScience, Inc. 2026. Available at: https://conductscience.com/tools/aquaculture-stocking-density-checker

FAO. Aquaculture Development: Good Aquaculture Practices. FAO Technical Guidelines. 2012.

RSPCA. Welfare Standards for Farmed Atlantic Salmon. 2021.

Why This Tool?

Instant biomass density calculation with species-specific risk levels and clear safe/caution/danger thresholds.

Tool details, related tools, and citation

About This Tool

Method: Maximum stocking densities from FAO guidelines and RSPCA welfare standards. Risk tiers: safe (≤70% max), caution (70–100% max), danger (>100% max).
Last Validated: 2026-04-08
Privacy: 100% client-side

Related Tools

How to Cite

ConductScience Aquaculture Stocking Density Checker (v1.0). ConductScience, Inc. 2026. Available at: https://conductscience.com/tools/aquaculture-stocking-density-checker

FAO. Aquaculture Development: Good Aquaculture Practices. FAO Technical Guidelines. 2012.

RSPCA. Welfare Standards for Farmed Atlantic Salmon. 2021.

Why This Tool?

Instant biomass density calculation with species-specific risk levels and clear safe/caution/danger thresholds.

Try it out

Load example stocking checker data to see the full workflow

Tank & Fish Parameters

Species

Tank Volume (L)

Number of Fish

Avg Weight (g)

Results

safe2.0 kg/m³

Stocking density 2.0 kg/m³ is well within limits for tilapia.

Density

2.0 kg/m³

current

Max Density

50 kg/m³

for tilapia

Biomass

20.0 kg

total

Volume

10.0 m³

tank

Before stocking new fish to plan appropriate numbers
After sampling to check if growth has pushed density too high
When designing new tanks or ponds for target production
During regulatory compliance checks

Don't use for

Without accounting for growth — recalculate as fish grow
For species not listed — maximum densities vary by species

Stocking Density in Aquaculture

Stocking density — the biomass of fish per unit volume of water — is a key determinant of production success and animal welfare. Each species has a maximum density beyond which water quality deteriorates faster than the system can compensate. This tool calculates current density and compares it to species-specific maximum thresholds, helping operators maintain safe and productive conditions.

Stocking Density Checker

Tank & Fish Parameters

Results

Stocking Density in Aquaculture

Frequently Asked Questions

Next Steps

Aquatic Research Equipment

Water Quality Instruments

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