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Oxygen Demand and Aeration Calculator

Enter the biomass, the fish’s oxygen consumption and your aerator’s capacity.

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Calculator

This calculator runs in your browser; the data you enter is not stored.

Results

Hourly oxygen demand
6.00 kg/h
Daily oxygen demand
144.0 kg
Aerators needed
8 pcs

How is it calculated?

  • Hourly demand (kg/h) = Biomass × Oxygen consumption ÷ 1,000,000
  • Aerators = Hourly demand × Safety factor ÷ Aerator capacity
  • Oxygen consumption rises with temperature, fish size and after feeding; values are general references.

FCRSOFT

FCRSOFT does this for you automatically

You don’t need to do the calculations and checks on this page by hand every day. FCRSOFT derives them all automatically from the records entered in the field.

  • Oxygen, temperature and pH readings are recorded per cage.
  • Sensor data is collected automatically, with instant alerts when thresholds are crossed.
  • Water quality history is reviewed side by side with FCR and mortality data.
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Related tools and guides

Guide

Managing Dissolved Oxygen in Aquaculture

What mg/L of dissolved oxygen fish farming needs, why it drops, when to measure it and what to do when it falls. Aeration calculation and monitoring guide.

Read the guideFree tool

Water Quality Checker

Choose your species and enter temperature, dissolved oxygen, pH, ammonia, nitrite and salinity to see a good, caution or critical status for each parameter.

Open the toolGuide

Managing Ammonia and Nitrite

What are total ammonia (TAN), free ammonia (NH₃) and nitrite, which levels are dangerous and how to lower them? How pH and temperature affect ammonia toxicity.

Read the guideFree tool

Stocking Density Calculator

From cage or pond volume, target density, harvest weight and survival, calculate the biomass you can carry at harvest and the number of juveniles to stock.

Open the tool

FCRSOFT

Monitor Water Quality 24/7

Oxygen, temperature and pH readings are recorded per cage; sensor data is collected automatically and you are alerted when thresholds are exceeded.

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FCRSOFT solutions

All inclusive

Enterprise Site — all products

Farm · Hatchery · Feed ERP · Processing · WMS & Supply · Sales & CRM · Finance · Maintenance · Trace & Cold Chain · B2B Commerce · Fleet & Vessel · Voyage & Chartering · Trade & Customs · Freight & Container

  • 30 full users
  • 1 sites
  • 69 modules
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