Nanobubble Technology for Fish Farming & RAS Aquaculture Oxygenation

Nanobubble Technology for Fish Farming & RAS Aquaculture Oxygenation

Overview

KD Farm, a progressive Recirculating Aquaculture System (RAS)-based Pangas (catfish) farming enterprise, aimed to optimize production efficiency, strengthen fish health, and mitigate operational risks associated with intensive aquaculture.


The integration of the NICO Nanobubble Generator marked a transformative shift in system performance, delivering consistently oxygen-rich water, improving biological conditions, and enabling measurable gains in productivity and profitability.

Project Details

  • Location: Sonipat, Haryana
  • Client: KD Farm (Navdeep Dhaiya Farm)
  • Date of Installation: 20 May 2025
Project Details Project Details

Pre-Installation Challenges

Prior to adopting nanobubble technology, KD Farm encountered several systemic constraints typical of high-density RAS
operations:

  • Inconsistent dissolved oxygen (DO) levels impacting system stability
  • Elevated fish stress and mortality during peak production cycles
  • Suboptimal Feed Conversion Ratio (FCR), affecting cost efficiency
  • Increasing feed and energy expenditure
  • Oxygen depletion during periods of high stocking density

These challenges limited the farm’s ability to scale efficiently while maintaining optimal fish health and water quality.

NICO Nanobubble Solution

To address these constraints, the NICO Nanobubble Generator was deployed to infuse water with ultra-fine oxygen nanobubbles. Due to their high stability and prolonged residence time, these nanobubbles enhance oxygen transfer efficiency and distribution within the system.

  • Deep, uniform oxygenation across the entire water column
  • Sustained and stable dissolved oxygen levels
  • Improved water quality with reduced dependence on conventional aeration systems
  • Enhanced system resilience under intensive farming conditions

Performance Outcomes

Parameter Unit Conventional System With *NNB ® Technology
Dissolved Oxygen mg/L 5 – 6 14 – 15
Fish Productivity kg/tank/cycle 2300 – 2400 3100 – 3300
Stock Density kg/tank 2400 – 2600 3300 – 3600
Fish Mortality Rate % Higher Reduced by 15 – 20%
Fish Stress Level Higher Significantly Reduced

*NNB – NICO Nanobubble

Impact Analysis

The introduction of nanobubble technology delivered both biological and operational advantages:

  • Improved Fish Health: Reduced stress levels and mortality rates contributed to more stable growth cycles
  • Higher Production Efficiency: Increased stocking density and productivity enabled better utilization of infrastructure
  • Cost Optimization: Lower energy requirements and improved FCR reduced operational expenditure
  • System Stability: Consistent oxygen availability minimized risks associated with oxygen crashes

Conclusion

The integration of NICO Nanobubble Technology significantly enhanced the operational performance of KD Farm’s RAS setup. By ensuring stable oxygenation, improving aquatic health conditions, and reducing input costs, the system enabled a shift toward more efficient and profitable aquaculture practices. This case reinforces the role of nanobubble technology as a critical enabler of scalable, sustainable, and high-performance aquaculture systems.