Micro nano bubbles play various important roles in aquaculture, mainly reflected in the following aspects:

1. Efficient oxygenation: Micro nano bubbles have the characteristic of large specific surface area and can carry more oxygen. In aquaculture water, these bubbles slowly rise and oxygen can continuously and fully dissolve into the water, increasing the dissolved oxygen content of the water and providing sufficient oxygen for aquaculture organisms (such as fish, shrimp, crabs, etc.), promoting their respiration and metabolism, enhancing their immunity and growth rate, and also helping to increase aquaculture density.

2. Water purification: On the one hand, during the process of rising in water, micro nano bubbles can adsorb some small particles, organic matter, impurities, etc. in the water to the surface of the bubbles through their own adsorption properties, and carry them up to the water surface for subsequent cleaning, thereby purifying the water. On the other hand, micro nano bubbles can promote the activity of microorganisms in water bodies, accelerate the decomposition of organic pollutants, improve the self purification ability of water bodies, and enhance water quality and environment.

3. Inhibit harmful microorganisms: Some micro nano bubbles (such as ozone micro nano bubbles) have strong oxidizing properties and can destroy the cell structure and physiological functions of harmful microorganisms such as bacteria, viruses, parasites, etc., playing a role in sterilization and disinfection, reducing the incidence of diseases in aquaculture organisms, lowering the risk of disease transmission, and ensuring the healthy growth of aquaculture organisms.

4. Promote nutrient absorption: Micro nano bubbles can improve the fluidity and mass transfer efficiency of water bodies, making nutrients (such as nutrients in feed, added trace elements, etc.) in aquaculture water more evenly distributed, which is conducive to the uptake and absorption of nutrients by aquaculture organisms, improving feed utilization efficiency, and reducing aquaculture costs.

5. Adjusting water environment: Micro nano bubbles can affect the physical and chemical properties of water, such as adjusting the pH value of water to maintain it within a suitable range for the growth of aquaculture organisms. In addition, it can also reduce the surface tension of water bodies, enhance the permeability of water bodies, and facilitate gas exchange and material circulation between water bodies and the external environment.