Recirculating Aquaculture System (RAS)
How Aquasust RAS Equipment Supports Efficient Aquaculture Water Treatment
Aquasust supplies core equipment for Recirculating Aquaculture Systems (RAS), supporting efficient water treatment and stable aquaculture production. Our solutions cover mechanical filtration, biological treatment, aeration, oxygenation, and water circulation processes used in modern fish and shrimp farming systems. By combining reliable manufacturing with technical support, we help customers select suitable equipment for a wide range of aquaculture applications.
Core Equipment for Recirculating Aquaculture Systems
A complete RAS system requires several specialized components working in sequence. Aquasust provides
a full range of equipment designed for both freshwater and marine aquaculture applications.
Drum Filter
The stainless steel frame microfilter is a highly efficient liquid filtration equipment that mainly uses a microporous filter membrane or screen to filter the liquid.
Drum Pond Filter
Small microfiltration machine specially designed for fish ponds can effectively filter impurities.
Protein Skimmer
Protein skimmers can effectively reduce the concentration of organic matter in water and promote the healthy development of water circulation.
Ozone Generator
An ozone generator is a device used to generate ozone, which can effectively sterilize, remove organic matter, and inhibit the growth of algae.
PP Aquaculture Vertical Flow Settler
PP Aquaculture Vertical Flow Settler can effectively remove suspended solids, improve water quality appearance, and facilitate sludge collection.
PP Fish Pond
Provide breeding space, you can directly see the internal environment of aquaculture.
Advantages of Aquasust's Integrated RAS System
Aquasust's RAS equipment provides essential advantages across the entire recirculating aquaculture process,
helping customers complete reliable, cost-effective, and sustainable aquaculture projects.
High-Efficiency Mechanical Filtration
Aquasust provides drum microfilters that effectively remove suspended solids, uneaten feed, and fish waste from the culture water, maintaining clean water conditions.
Powerful Biological Filtration
Aquasust offers MBBR biofilter media that provides a large protected surface area for beneficial bacteria, efficiently breaking down ammonia and nitrite to stabilize water quality.
Reliable Oxygenation and Aeration
Aquasust supplies aeration diffusers that maintain stable dissolved oxygen levels in the culture water, supporting high-density aquaculture operations.
Organic Removal and Disinfection
Aquasust provides protein skimmers and ozone generators that effectively reduce organic matter concentration and eliminate pathogens, ensuring biosecurity in the system.
Integrated Solid-Liquid Separation
Aquasust offers vertical flow settlers that work together with mechanical filtration to achieve multi-stage solid waste removal and facilitate sludge collection.
System Design & Technical Support
Beyond equipment supply, Aquasust provides technical consultation, system design assistance, and installation support for recirculating aquaculture systems—helping customers build efficient and reliable RAS projects from start to finish.
RAS Applications for Different Aquaculture Projects
Aquasust supports aquaculture projects across different growth stages, from hatchery and nursery systems to grow-out
farming and recirculating water treatment. Our core RAS equipment can be configured for different aquatic
species, water types, stocking densities, feeding rates, and water quality requirements.
-
Freshwater Fish Farming RAS
Freshwater fish farming projects require stable filtration, water circulation, and aeration support throughout the nursery and grow-out stages. Aquasust provides core RAS equipment to help farms remove suspended solids, improve water clarity, reduce manual cleaning, and maintain more stable water conditions for land-based production.
Aeration Diffuser
Recommended Equipment: Rotary Drum Filter, -
Marine Aquaculture RAS
Marine aquaculture projects often require stronger organic load control, disinfection, and water clarity management. Aquasust helps configure protein skimmers, ozone generators, filtration systems, and aeration equipment for marine fish, shrimp, and other saltwater farming applications.
Aeration Diffuser
Recommended Equipment: Protein Skimmer, -
Fish Hatchery & Nursery RAS
Hatchery and nursery systems require stable, gentle, and well-controlled water treatment for eggs, larvae, fry, and juvenile aquatic animals. Aquasust supports early-stage aquaculture projects with suitable filtration, aeration, disinfection, and tank equipment to help maintain a healthier nursery environment.
Aeration Diffuser
Recommended Equipment: Drum Pond Filter, -
Intensive Grow-Out Fish Farming RAS
Commercial grow-out farming places higher demands on filtration capacity, oxygen supply, and organic load control due to higher biomass and feeding rates. Aquasust helps intensive aquaculture projects select suitable RAS equipment based on water volume, stocking density, feeding rate, and system layout.
Ozone Generator
Recommended Equipment: Rotary Drum Filter, -
Ornamental Fish & Aquarium RAS
For ornamental fish farms, aquariums, and aquatic display systems, water clarity, stable circulation, and disease risk control are especially important. Aquasust provides compact and efficient filtration, protein separation, ozone treatment, and fish tank equipment for clean and visually stable water environments.
PP Fish Pond
Recommended Equipment: Drum Pond Filter, -
Existing Fish Farm Upgrade
Not every aquaculture project requires a completely new RAS system. Aquasust helps existing fish farms improve filtration, aeration, disinfection, and water circulation by adding suitable RAS equipment according to current pond, tank, or system conditions.
Recommended Equipment: Drum Pond Filter,PP Aquaculture Vertical Flow Settler,
Blower
Whether you are building a new recirculating aquaculture system or upgrading an existing facility, our team can help identify suitable equipment configurations and technical support based on your fish species, stocking density, and water quality targets.
Why Choose Aquasust As Your RAS Equipment Manufacturer?
Aquasust takes pride in being a professional recirculating aquaculture system (RAS) equipment manufacturer in China, with
years of experience in water treatment equipment and aquaculture technology. We specialize in providing core
RAS components and integrated system solutions to support sustainable fish farming operations worldwide.
Factory Supply & OEM/ODM Support
Strong Technical Support from Aquaculture Experts
Reliable Production & Stable Supply
Comprehensive Customer Support
FAQ
Q: What is a Recirculating Aquaculture System (RAS)?
A: A Recirculating Aquaculture System (RAS) is a closed-loop fish farming technology that reuses water by passing it through mechanical filtration, biological treatment, aeration, and disinfection processes. It minimizes water consumption and waste discharge while maintaining stable water quality for high-density fish farming.
Q: How do I choose the right RAS equipment for my project?
A: Equipment selection depends on several factors: target fish species, desired stocking density, daily feed input, water quality targets, available space, and budget. It is recommended to consult with an experienced RAS supplier, such as Aquasust, who can evaluate your specific requirements and provide a customized equipment configuration.
Q: What are the main advantages of using RAS for fish farming?
RAS offers several key benefits: reduced water usage (up to approximately 90% less than traditional systems), better disease control, year-round production regardless of external climate, higher stocking densities, and improved fish growth rates due to stable water conditions.
Q: Do you provide installation support and technical training?
A: Yes. We provide installation guidance and remote video support for our RAS equipment. For installation, we work with your local engineering contractors or system integrators—providing them with detailed guidance, remote video support, and technical advice to ensure proper setup. We also offer operational training for your team to help them run the system efficiently and handle routine maintenance.
Q: What equipment is included in a complete RAS system?
A: A typical RAS includes PP fish pond for the farming environment,
drum pond filter for mechanical solid removal,
MBBR biofilter media for biological treatment, aeration diffusers for dissolved oxygen supply,
protein skimmer and
ozone generator for organic removal and disinfection, and
PP aquaculture vertical flow settler for sludge collection.
Q: Can you customize RAS equipment for specific farm requirements?
Yes. Aquasust supports aquaculture projects with customized equipment selection and configuration suggestions. Based on your farming species, water volume, stocking density, feeding rate, and project layout, our team helps you select suitable filtration, separation, disinfection, aeration, and tank components for a more stable RAS operation.
Q: What fish species can be raised in RAS?
A: By maintaining consistent water quality, reducing water exchange requirements, and supporting higher stocking densities, this RAS system is ideally suited for a wide range of fish farming applications, including tilapia, salmon, trout, shrimp, ornamental fish, sturgeon, perch, catfish, carp, and other freshwater and marine species.
Q: How do I get a quote for my RAS project?
A: Simply contact our team with your project requirements, including target fish species, estimated production volume, available space, and water quality targets. We will evaluate your needs and provide a customized equipment recommendation and quotation promptly. The more detailed information you provide, the faster and more accurate your quote will be.
Related Products
We're professional recirculating aquaculture system (ras) manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale custom made recirculating aquaculture system (ras) from our factory.
We Grow Your Business in 4 Ways
-
Wholesale at Factory Prices
Order standard products directly from our factory with flexible MOQ and reliable worldwide shipping.
-
OEM & ODM Service
Custom designs and private labeling supported. Co-develop new products with customers in our in-house R&D lab.
-
Project Solutions
We offer turnkey wastewater treatment and RAS system project solutions from design to installation support.
-
Dealer Cooperation
Join our dealer network for regional exclusivity, marketing assistance, and discounted rates.
Get in Touch with AquaSust
Leave a message for more information about our products series, and request a quote or expert advice.