Common Aeration Questions Shrimp Farmers Ask – Answered Simply

 

Aeration is one of the most discussed—and misunderstood—topics in shrimp farming. Most farmers don’t search for product names or technologies. They search for solutions to problems they see in their ponds.

This blog answers the real questions shrimp farmers ask about aeration in nurseries and grow-out ponds.

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Why Do Shrimp Gather Near the Pond Edge or Surface at Night?

This usually happens due to low dissolved oxygen (DO) in the pond, especially near the bottom.

At night:

• Algae stop producing oxygen
• Shrimp respiration increases
• Organic waste consumes oxygen near the pond floor

If oxygen is only available at the surface, shrimp move upward or toward aerators to survive.

Bottom aeration helps maintain oxygen where shrimp live, preventing this behaviour.

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Is Surface Aeration Enough for Shrimp Farming?

Surface aerators mainly:

• Oxygenate the top layer of water
• Create strong currents near the machine
• Leave the pond bottom under-aerated

For low stocking densities, this may be sufficient.
For nurseries, biofloc systems, or intensive grow-out ponds, surface aeration alone is usually not enough.

Bottom-level oxygen supply is critical as biomass increases.

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Why Does My Pond Bottom Turn Black and Smell Bad?

A black, foul-smelling pond bottom indicates:

• Low oxygen at the bottom
• Formation of anaerobic conditions
• Presence of toxic gases like hydrogen sulphide (H₂S)

This often leads to:

• Poor shrimp growth
• Weak moulting
• Sudden mortality

Aeration that reaches the pond bottom prevents these conditions by keeping the soil aerobic.

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How Can I Improve Oxygen at the Pond Bottom?

To improve bottom oxygen:

• Use aeration systems that release air near the pond floor
• Ensure oxygen is distributed evenly across the pond
• Avoid relying only on high-turbulence surface aerators

Fine air bubbles rising slowly from the bottom improve oxygen transfer and circulation without stressing shrimp. More info https://airoxitube.blogspot.com/2025/02/what-is-ideal-aeration-setup-for-shrimp.html

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Why Is Aeration More Important in Shrimp Nurseries?

Nurseries have:

• Very high stocking density
• High feeding frequency
• Rapid waste accumulation

Young shrimp stay close to the bottom and are sensitive to:

• Oxygen fluctuations
• Strong water currents

Gentle, uniform aeration near the bottom improves:

• Survival rate
• Growth uniformity
• Stress resistance during moulting

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Can Too Much Aeration Stress Shrimp?

Yes.

Excessive or poorly designed aeration can:

• Create strong currents
• Increase shrimp energy loss
• Cause physical stress or injury

Effective aeration should:

• Supply oxygen evenly
• Maintain gentle circulation
• Avoid disturbing feeding and resting behaviour

More turbulence does not always mean better oxygenation.

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Why Does Feed Waste Accumulate Even with Aerators Running?

This happens when:

• Aeration is concentrated in one area
• Pond circulation is uneven
• Bottom zones remain stagnant

Proper aeration helps:

• Prevent sludge compaction
• Keep organic matter from settling excessively
• Make siphoning and waste removal easier

Even oxygen distribution is key, not just aerator power.

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Is Bottom Aeration Useful in Grow-Out Ponds?

Yes, especially during:

• Mid to late culture stages
• High biomass periods
• Nighttime and early morning hours

Bottom aeration helps:

• Maintain stable DO during peak demand
• Improve feed conversion ratio (FCR)
• Reduce disease risk linked to poor pond conditions

Many farms combine bottom aeration with surface aerators for best results.

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Does Better Aeration Reduce Shrimp Disease?

Indirectly, yes.

Good aeration:

• Prevents toxic gas formation
• Improves pond hygiene
• Supports beneficial microbial activity
• Reduces stress on shrimp

Lower stress and cleaner pond bottoms result in better immunity and survival.

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Is Aeration Power Consumption Always High?

Not necessarily.

Efficient aeration depends on:

• Bubble size
• Air distribution method
• Coverage area

Systems that distribute air evenly using fine bubbles often achieve:

• Higher oxygen transfer efficiency
• Lower energy consumption per kg of shrimp produced

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What Is the Best Aeration Strategy for Shrimp Farming?

There is no single aerator that fits all farms, but the most effective strategy usually includes:

• Uniform oxygen distribution
• Oxygen availability at the pond bottom
• Gentle circulation suitable for shrimp behaviour
• Scalable aeration as biomass increases

Farms that focus only on surface oxygen often face problems later in the cycle.

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Final Thoughts for Shrimp Farmers

If you are facing issues like:

• Low DO at night
• Black pond bottoms
• Uneven shrimp growth
• High FCR
• Sudden mortality during peak biomass

The problem is often not lack of aerators, but how and where oxygen is delivered.

Improving bottom-level oxygen and uniform aeration can dramatically improve pond performance in both nurseries and grow-out systems.

CONTACT US

🌐 www.airoxi.com
📞 +91 70410 04098 |
📧 info@airoxi.com

🌐 www.buy.airoxi.com

 

AERATION NEEDS IN FSH FARMING USING DIFFUSED AERATION – ACCOUNTING FOR CLIMATE DIFFERENCES WITH FOCUS ON FOUR STATES OF INDIA - MAHARASHTRA, CHHATISGARH, HARYANA AND BIHAR

 

Fish farming is expanding fast across India, and so is the pressure to keep ponds healthy through every season. Whether it’s a carp pond in Bihar, a growing pangasius cluster, or an intensive tank near a city market, one thing stays constant: dissolved oxygen (DO) decides growth, survival, feed conversion, and water quality. When oxygen drops, fish stop feeding, sludge starts “working against you,” ammonia becomes more toxic, and disease pressure rises.

That’s exactly where AirOxi Tube fits in. It’s designed to increase aeration efficiently and evenly, helping farmers maintain stable oxygen levels without turning the pond into a washing machine. And that matters even more in states like Maharashtra, Haryana, Bihar, and Chhattisgarh, where fish culture is growing under very different climates and pond conditions.

Why aeration is the backbone of profitable fish farming

In a pond, oxygen isn’t just used by fish. It’s consumed by:

• plankton and algae (especially at night)
• decomposing feed and organic waste on the bottom
• beneficial bacteria that convert harmful ammonia to safer forms

This means DO can crash even in ponds that look fine. The typical danger windows are:

• late night to early morning (lowest DO)
• after heavy feeding
• after rains / cloudy days
• during heat waves
• when ponds carry high organic load

Aeration is not only “for emergencies.” It’s a production tool: better oxygen means better appetite, better digestion, faster growth, and lower mortality.

How AirOxi Tube increases aeration (in practical farm terms)

Traditional aeration options often create oxygen mostly near the surface or in one corner. AirOxi Tube, by design, targets uniform oxygen distribution by releasing air in a way that helps oxygen mix through the water column more evenly.

Here’s what that delivers on the farm:

1) More uniform DO across the pond

Instead of having “oxygen-rich zones” and “dead zones,” AirOxi Tube helps spread aeration so fish don’t crowd near one aerator. This reduces stress, improves feeding behaviour, and prevents bottom areas from turning anaerobic.

2) Better bottom health and reduced toxic gases

Many ponds suffer from black sludge, hydrogen sulphide smell, and rising ammonia—especially where feeding is heavy. With improved aeration and circulation near the pond bottom, AirOxi Tube supports the biology that breaks down waste more cleanly. The result is:

• less bottom foul smell
• fewer sudden “gas events”
• more stable water parameters

3) More stable plankton and less night-time DO crash

Farmers often see DO drop sharply after midnight when plankton consume oxygen. Because AirOxi Tube supports continuous and evenly spread aeration, it helps buffer those drops—especially useful during cloudy spells or monsoon transitions.

4) Lower power wastage from over-aerating one spot

When aeration is uneven, farmers compensate by running systems longer. A more distributed aeration approach means you’re not “over-oxygenating” one corner just to save another. That can translate into more effective oxygen per unit of energy, depending on farm layout and operating practice. More info https://airoxitube.blogspot.com/2025/07/choosing-right-airoxi-aeration-tube.html

Four State-wise examples based on different geography and climate

Maharashtra: heat, evaporation, and variable pond depths

In many parts of Maharashtra, summer heat can push pond temperatures high, and warm water holds less oxygen. Add intensive feeding and you get morning DO dips and stressed fish. AirOxi Tube helps by:

• maintaining more consistent DO during hot periods
• supporting better mixing in ponds where water level changes due to evaporation
• improving bottom conditions in farms that feed heavily for faster growth

For Maharashtra farmers targeting higher density culture, this can be the difference between “good growth with risk” and “good growth with control.”

Haryana: high intensity, nutrient load, and winter swings

Haryana’s aquaculture often leans toward high-input, intensive management, where feed load and organic load can climb quickly. Aeration isn’t optional—it’s the safety net. AirOxi Tube helps because:

• it supports oxygen where waste accumulates, not just at the surface
• it reduces the chances of localized oxygen shortage that triggers disease
• it supports better water quality management when stocking and feeding are high

Also, Haryana sees colder periods where pond dynamics change. Consistent aeration supports the pond ecosystem when natural oxygen production from algae becomes unpredictable.

Bihar: rapid expansion, monsoon stress, and night-time crashes

Bihar has seen strong growth in pond-based fish culture, and many ponds are vulnerable to monsoon-driven fluctuations—runoff, turbidity, and sudden algae shifts. In these conditions, DO crashes can happen quickly, especially early morning. AirOxi Tube can help by:

• providing steady aeration even when sunlight-driven oxygen production drops
• reducing stress events after rain and cloudy days
• keeping fish active and feeding more consistently

This is particularly useful for farmers who can’t afford daily water exchanges and depend on aeration to stabilize the pond.

Chhattisgarh: pond culture scale, organic buildup, and seasonal variability

Chhattisgarh has abundant water bodies and pond culture potential, but seasonal changes and organic accumulation can reduce yields. Many farms face:

• uneven pond bottoms
• variable water depth
• organic load from feed and natural productivity

AirOxi Tube helps improve aeration spread and supports better bottom conditions, which can raise survival and improve growth performance across the season. www.airoxi.com

Where AirOxi Tube makes the biggest difference on the farm

You’ll see the strongest impact if your pond has one or more of these:

• stocking density is increasing year-on-year
• fish gasp at surface early morning (even occasionally)
• black sludge, bad smell, or frequent ammonia spikes
• high feed input and strong plankton bloom cycles
• disease outbreaks after weather changes

In these cases, AirOxi Tube becomes not just an aeration tool, but a risk-control system for the whole pond.

A simple operating mindset for farmers

To get the best outcome:

• run aeration during high-risk hours (late night to early morning)
• increase aeration after heavy feeding days
• be proactive during cloudy/monsoon spells
• observe fish behaviour daily—fish tell you the DO story before test kits do

The bottom line

Across all climates, considering here examples of Maharashtra, Haryana, Bihar, and Chhattisgarh, the challenge is the same even if the climate differs: fish farming is becoming more intensive, and ponds need stable oxygen and stable biology. AirOxi Tube increases aeration by improving distribution and supporting better bottom and water conditions—leading to healthier fish, more reliable feeding, and fewer sudden losses.

In modern aquaculture, oxygen isn’t just a parameter. It’s profit. And the right aeration approach is one of the smartest upgrades a fish farmer can make.

CONTACT US

🌐 www.airoxi.com
📞 +91 70410 04098 |
📧 info@airoxi.com

🌐 www.buy.airoxi.com

 

 

Introducing the AirOxi × Newterra Partnership: AIRE-O2 Series II Aerator for Premium Aquaculture Performance

 

In a landmark alliance for Indian aquaculture farmers, AirOxi is proud to announce its partnership with US-based Newterra to bring the AIRE-O2® Series II aspirator-aerator to the Indian market. This collaboration leverages decades of global aeration expertise and India-specific aquaculture design know-how to deliver next-level performance.

Why the Partnership Matters

The global aeration brand AIRE-O2 by Newterra has earned its reputation through robust engineering and proven results. Their “Aspirator Aerator” concept draws in atmospheric air through the drive shaft and propeller system, delivering a high-velocity plume of fine bubbles and mixing throughout the pond. myaquaticsolutions.com+1

By partnering with AirOxi, Indian farmers now gain local access to this premium equipment, backed by Indian manufacturing/distribution, technical support, and tailored design solutions for local pond, hatchery and RAS conditions.

What is AIRE-O2 Series II?

The Series II aspirator aerator has several standout features:

• Produces fine bubbles (<~2 mm) ensuring superior oxygen transfer. Newterra+1
• Draws air through intake ports above water, down the hollow shaft, past the propeller and into the water in a volumetric plume. myaquaticsolutions.com+1
• Designed with robust motors, water‐lubricated bearings (avoiding contamination), and heavy duty build for harsh aquaculture environments. Newterra
• Versatile horsepower range, accepts deep pond installations and higher density systems. Newterra+1

In short: this isn’t a simple surface aerator—it’s a true aspirator & mixing device built for high-demand systems. More info https://airoxitube.blogspot.com/2020/04/using-an-aire-o2-from-usa-aerator-for-aeration-in-fish-farms.html

Why Is This Perfect for Indian Aquaculture?

In India, many grow‐out ponds, shrimp biofloc systems, high‐density tanks and RAS installations demand aeration systems that can deliver:

• High oxygen transfer for intensive biomass
• Strong mixing to avoid dead zones and stratification
• Low maintenance in challenging climate conditions
• Reliable vendor support, spare parts and local servicing

The AirOxi–Newterra collaboration means farmers get all this, packaged for the Indian market.

In a landmark alliance for Indian aquaculture farmers, AirOxi is proud to announce its partnership with US-based Newterra to bring the AIRE-O2® Series II aspirator-aerator to the Indian market. This collaboration leverages decades of global aeration expertise and India-specific aquaculture design know-how to deliver next-level performance.

Why the Partnership Matters

The global aeration brand AIRE-O2 by Newterra has earned its reputation through robust engineering and proven results. Their “Aspirator Aerator” concept draws in atmospheric air through the drive shaft and propeller system, delivering a high-velocity plume of fine bubbles and mixing throughout the pond. myaquaticsolutions.com+1

By partnering with AirOxi, Indian farmers now gain local access to this premium equipment, backed by Indian manufacturing/distribution, technical support, and tailored design solutions for local pond, hatchery and RAS conditions.

What is AIRE-O2 Series II?

The Series II aspirator aerator has several standout features:

• Produces fine bubbles (<~2 mm) ensuring superior oxygen transfer. Newterra+1
• Draws air through intake ports above water, down the hollow shaft, past the propeller and into the water in a volumetric plume. myaquaticsolutions.com+1
• Designed with robust motors, water‐lubricated bearings (avoiding contamination), and heavy duty build for harsh aquaculture environments. Newterra
• Versatile horsepower range, accepts deep pond installations and higher density systems. Newterra+1

In short: this isn’t a simple surface aerator—it’s a true aspirator & mixing device built for high-demand systems. More info https://airoxitube.blogspot.com/2020/04/using-an-aire-o2-from-usa-aerator-for-aeration-in-fish-farms.html

Why Is This Perfect for Indian Aquaculture?

In India, many grow‐out ponds, shrimp biofloc systems, high‐density tanks and RAS installations demand aeration systems that can deliver:

• High oxygen transfer for intensive biomass
• Strong mixing to avoid dead zones and stratification
• Low maintenance in challenging climate conditions
• Reliable vendor support, spare parts and local servicing

The AirOxi–Newterra collaboration means farmers get all this, packaged for the Indian market.

Application Scenarios

• Deep grow-out earthen ponds: where regular surface aerators beat only the surface. The aspirator plume ensures mixing from top to bottom.
• Biofloc ponds and tanks: where dense microbial loads demand high DO and good mixing.
• RAS & hatcheries: where fine control of DO, minimised stratification and rapid turn-over are essential.
• Night-time rescue or high-feed periods: aspirator systems with powerful plume capability help recover DO quickly.

How AirOxi Complements the Offering

AirOxi brings local design intelligence: choosing correct loop layout, pump sizing, power supply adaptation, piping for TermiPore or other injection, and installation support. Together with the AIRE-O2 Series II equipment, this forms a complete solution—equipment + design + service.

ROI & Benefits to Farmers

• Higher DO = better growth, better feed conversion, fewer mortalities.
• Better mixing = uniform water quality, reduced dead zones and stratification.
• Robust equipment = fewer breakdowns in Indian conditions, easier service.
• Access to premium global technology without doing full import/maintenance logistics alone.

Getting Started

If you’re operating a pond of 2 acres or more, or a RAS/biofloc facility, now is the time to evaluate aspirator aeration technology. AirOxi offers site visits, DO testing, system sizing and helps select the correct horsepower, installations layout, and operating schedule.

Conclusion

The partnership between AirOxi and Newterra for the AIRE-O2 Series II aspirator aerator represents a milestone for Indian aquaculture. It signifies the transition to higher-performance aeration and mixing systems—critical enablers of modern intensive farming. Whether you are expanding your grow-out farm, upgrading your RAS or launching a shrimp biofloc unit, this collaboration offers you world-class aeration technology combined with local support.

Prepare for the next generation of productivity, sustainability and water quality—contact AirOxi today to discuss how AIRE-O2 Series II can be integrated into your operation.

CONTACT US

🌐 www.airoxi.com
📞 +91 70410 04098 | 📞 +91 98980 72244
📧 info@airoxi.com

 

Application Scenarios

• Deep grow-out earthen ponds: where regular surface aerators beat only the surface. The aspirator plume ensures mixing from top to bottom.
• Biofloc ponds and tanks: where dense microbial loads demand high DO and good mixing.
• RAS & hatcheries: where fine control of DO, minimised stratification and rapid turn-over are essential.
• Night-time rescue or high-feed periods: aspirator systems with powerful plume capability help recover DO quickly.

How AirOxi Complements the Offering

AirOxi brings local design intelligence: choosing correct loop layout, pump sizing, power supply adaptation, piping for TermiPore or other injection, and installation support. Together with the AIRE-O2 Series II equipment, this forms a complete solution—equipment + design + service.

ROI & Benefits to Farmers

• Higher DO = better growth, better feed conversion, fewer mortalities.
• Better mixing = uniform water quality, reduced dead zones and stratification.
• Robust equipment = fewer breakdowns in Indian conditions, easier service.
• Access to premium global technology without doing full import/maintenance logistics alone.

Getting Started

If you’re operating a pond of 2 acres or more, or a RAS/biofloc facility, now is the time to evaluate aspirator aeration technology. AirOxi offers site visits, DO testing, system sizing and helps select the correct horsepower, installations layout, and operating schedule.

Conclusion

The partnership between AirOxi and Newterra for the AIRE-O2 Series II aspirator aerator represents a milestone for Indian aquaculture. It signifies the transition to higher-performance aeration and mixing systems—critical enablers of modern intensive farming. Whether you are expanding your grow-out farm, upgrading your RAS or launching a shrimp biofloc unit, this collaboration offers you world-class aeration technology combined with local support.

Prepare for the next generation of productivity, sustainability and water quality—contact AirOxi today to discuss how AIRE-O2 Series II can be integrated into your operation.

CONTACT US

🌐 www.airoxi.com
📞 +91 70410 04098 | 📞 +91 98980 72244
📧 info@airoxi.com