Nanobubbles

Revolutionising Water Quality Management in Aquaculture

Nanobubbles are ultrafine gas bubbles (less than 200 nanometers in diameter) that are transforming the way we manage water quality in aquaculture. Unlike traditional bubbles, nanobubbles are incredibly stable, staying suspended in water for long periods—sometimes days or even weeks. This unique property makes them a powerful tool for improving water health, oxygen efficiency, and overall system performance.


How Do Nanobubbles Work?

Nanobubbles work by combining physical, chemical, and biological processes to optimise water quality:

  1. Physical:
    • Brownian Motion: Nanobubbles move randomly through water, ensuring even distribution of oxygen and other gases.
    • Cavitation Effect: The collapse of nanobubbles generates energy that oxidises organic waste and harmful microorganisms.

  2. Chemical:
    • Increased Redox Potential: Nanobubbles raise the redox potential, enhancing oxidation and improving water clarity.
    • Gas Transfer: They efficiently transfer oxygen (O2) or ozone (O3) into the water, ensuring higher dissolved gas levels.

  3. Biological:
    • Waste Breakdown: Nanobubbles break down organic waste, reducing the biological oxygen demand (BOD) and improving water quality.
    • Bio Security: They disrupt and eliminate harmful bacteria, viruses, and parasites, reducing disease risk.

What Do Nanobubbles Do?

Nanobubbles offer a range of benefits for aquaculture systems:

  • Resistant to Degassing: Nanobubbles maintain higher oxygen levels in water for longer periods, even under active aeration.
  • Improved Oxygen Utilisation: They distribute oxygen more effectively through Brownian motion, reaching deeper areas of ponds and tanks.
  • Reduced Chemical Use: By breaking down waste and improving redox potential, nanobubbles reduce the need for oxidisers like ozone or hydrogen peroxide.
  • Biofilm Control: Nanobubbles prevent biofilm buildup on surfaces, improving system efficiency.
  • Algae Management: They oxidise excess nutrients, reducing algal blooms and improving water clarity.

Applications in Aquaculture

Nanobubbles are versatile and effective in a wide range of aquaculture systems:

  1. Intensive Indoor Systems (Tanks & RAS):

    • Maintain high dissolved oxygen levels in high-density setups.
    • Reduce waste buildup and improve water clarity.
    • Enhance bio security by eliminating harmful microorganisms.

  2. Extensive Outdoor Ponds:

    • Improve oxygen distribution in large ponds, preventing anaerobic zones.
    • Break down organic waste, reducing BOD and improving water health.
    • Control algal blooms and improve water clarity.

  3. Hybrid Systems:

    • Combine nanobubbles with on-demand oxygen for maximum efficiency.
    • Use ozone integration for advanced disinfection and waste management.

Why Choose Nanobubbles?

Nanobubbles are not just another oxygenation tool—they’re a game-changer for aquaculture. They improve water quality, reduce operational costs, and support sustainable practices. Whether you’re running an intensive RAS or managing extensive outdoor ponds, nanobubbles are the perfect addition to your system.


Start Your Nanobubble Journey Today

Discover how Biotech Aquatica’s NBN (Nanobubble Nozzle) range can transform your aquaculture system. Contact us to learn more about our products and how they can help you achieve cleaner water, healthier fish, and lower costs.