Excellent aquaculture equipment manufacturer and supplier: Galvanised metal tarpaulin ponds also excel in aquaculture management. The pond structure typically incorporates transparent or semi-transparent tarpaulin coverings, enabling direct observation of rainbow trout growth, feeding behaviour, and water transparency. Integrated with modern water quality monitoring equipment, these structures enable real-time, precise control of critical parameters such as dissolved oxygen levels, water temperature, and pH. This facilitates meticulous feeding and management practices, significantly enhancing feed conversion rates and fish survival rates. As illustrated, fish farmers can conveniently conduct daily feeding and inspections, substantially improving management efficiency.
The precise control of the farming environment is the core competitiveness of RAS systems. Traditional pond farming is greatly affected by natural fluctuations in weather, water temperature, and water quality, leading to frequent problems such as insufficient dissolved oxygen and pH imbalance, which cause strong stress responses in the farmed organisms and increase the risk of disease outbreaks. RAS systems use intelligent devices to monitor and control key indicators such as water temperature, dissolved oxygen, and ammonia nitrogen in real time, maintaining a stable water environment and keeping the farmed organisms in the best growth state. Data shows that the survival rate of fish and shrimp in RAS systems is 20% to 30% higher than that in traditional ponds, and the growth cycle is shortened by 15% to 20%.
Ozone alone cannot maintain a stable RAS environment. Fish release ammonia continuously through their gills and metabolic waste, and even low concentration of ammonia impairs gill function, suppress appetite and inhibit growth. Due to this fact, biological filtration is the second key pillar of the dual-treatment approach. In the biofilter, Nitrosomonas, Nitrobacter and Nitrospira are specific nitrifying bacteria that will turn ammonia to nitrite and subsequently to nitrate via the nitrification process (Oshiki et al., 2022). This bio-chemical conversion is necessary in preserving a safe environment in high-density aquaculture plants. Due to ozone being sensitive to these bacteria, physical separation between ozone contact and biological filtration must be maintained during system design. In contemporary RAS, ozone is sprayed into a separate chamber where it combines with water then flows through a degassing unit that removes all the remaining ozone. This step is only done after which treated water can be admitted into the biological filtration process(Xiao et al., 2019).
In the early 21st century, with the rapid development of materials science, new corrosion-resistant, high-strength, and relatively low-cost materials, such as PVC and PE, were widely used in aquaculture facilities and piping systems, greatly improving the durability and stability of these systems. Simultaneously, significant breakthroughs were made in water quality monitoring technology, with the emergence of various high-precision sensors capable of real-time and accurate monitoring of key parameters in aquaculture water, such as temperature, dissolved oxygen, pH, and ammonia nitrogen. Based on this monitoring data, automated control systems became more intelligent, automatically adjusting equipment operation according to changes in water quality, achieving precise control of the aquaculture environment. Furthermore, in the field of aquaculture nutrition and feed technology, in-depth research was conducted on the nutritional needs of different aquaculture species at different growth stages, leading to the development of more precise feed formulations, improving feed utilization, and reducing environmental pollution. During this period, land-based recirculating aquaculture systems (RAS) developed rapidly globally, with Asia, South America, and other regions beginning to vigorously promote and apply this aquaculture model, resulting in a qualitative leap in both scale and technological level. See extra information at fish farming supplies China.
Shandong Wolize Biotechnology Co., Ltd. leads aquaculture system innovation, empowering green fisheries. A high-tech enterprise, it focuses on R&D, production and technical services of aquaculture systems. Based in China’s aquaculture hub, it delivers global intelligent solutions via tech innovation, driving the industry’ s quality, efficiency and green growth. Its self-developed RAS, biological filtration and smart monitoring boost density, survival rate, and cut energy use/pollution, advancing industrialization. It offers one-stop services from design to training, covering breeding to tailwater treatment, aiding disease control and water regulation.
Market demand provides a solid guarantee of returns. Water resources are scarce in Saudi Arabia and the entire Gulf region, and the catch of marine products is limited, making over 80% of the local aquatic products dependent on imports. Tilapia and catfish, due to their fast growth, strong disease resistance, and good meat quality, are highly favored sources of protein. Localized farming not only shortens the long import chain, ensuring the freshness of the products, but also offers significant price competitiveness. This means that every fish produced by the farm can quickly enter the market and be converted into real profits. The conclusion is obvious: In Saudi Arabia, the galvanized sheet fish pond farming project perfectly aligns with the “Saudi Vision 2030” strategy on food security and economic diversification. With its outstanding product advantages, it has transformed the originally unfavorable natural environment into a controllable and efficient production system, and then connected with the huge and urgently needed local market. Eventually, it achieved a value leap from “a drop of water” to “a bucket of gold”, composing a touching “desert fish song” for investors.