Aquaculture Blower CFM Calculator
Regenerative blower airflow for pond/tank aeration.
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ⓘ Live results
Results
- Required blower airflow
- 100 SCFM
- Diffusers at 2 SCFM each
- 50
Quick answer
Aquaculture aeration blowers are typically sized around 1-2 standard CFM of air per pound of fish biomass per hour under intensive stocking.
CFM = biomass (lb) x CFM per lb
How to use the Aquaculture Blower CFM Calculator
- 1Estimate the total fish biomass in the pond or tank system.
- 2Apply an aeration rate per pound based on stocking density and species oxygen demand.
- 3Distribute the total SCFM across diffusers for even oxygen distribution.
Worked example
Using the values the calculator loads with:
Inputs
- Fish biomass5000 lb
- CFM per lb biomass0.02 CFM/lb
Results
- Required blower airflow100 SCFM
- Diffusers at 2 SCFM each50
Frequently asked questions
Does water temperature matter?
Yes — warmer water holds less dissolved oxygen, so hot conditions raise the aeration requirement.
Emergency backup?
Intensive systems should have a backup blower or generator, since fish kills can happen within hours of a power loss.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.