Advanced
Aquaculture
Systems
ARK AQUATECH delivers end-to-end advanced aquaculture systems — from biofloc fish farming tanks and recirculating aquaculture systems (RAS) to HDPE pond lining, smart automation, oxygen management, and aquaculture water treatment — helping Indian fish farmers achieve record yields sustainably and profitably.
500+
Farms Commissioned
12+
Years in Fishery Technology
99%
Client Retention Rate
30+
States Served Across India
Biofloc Fish Farming:
The Future of Sustainable Aquaculture
Biofloc fish farming has revolutionised the aquaculture industry in India and globally. At ARK AQUATECH, we engineer, supply, and commission complete biofloc fish tank systems tailored to your species, land area, and investment capacity. Whether you are a first-time fish farmer exploring bio floc farming or an established commercial operator looking to scale with proven bio floc technology, our team delivers solutions backed by science, field experience, and 12+ years of fishery technology expertise.
What is Biofloc Technology?
Biofloc technology (BFT) is a sustainable aquaculture method where beneficial microorganisms — bacteria, algae, and protozoa — are cultivated inside the fish tank. These microbial flocs serve as a live, protein-rich feed for fish while simultaneously treating water by converting toxic ammonia and nitrites into harmless compounds. The result is a near-zero water-exchange system that dramatically reduces operating costs and environmental impact.
Biofloc Fish Farming Cost & ROI
One of the biggest advantages of biofloc fish farming is cost efficiency. Because the biofloc system recycles nutrients, feed conversion ratios (FCR) drop significantly — often 20–30% lower than conventional pond farming. Biofloc fish tank setups typically range from ₹3–8 lakh for a starter round-tank unit, with biofloc tank prices varying based on volume (10,000–100,000 litres), aeration design, and automation level. Commercial operators consistently report payback within 18–30 months.
Biofloc Fish Tank Design & Setup
A standard biofloc tank from ARK AQUATECH uses high-density polyethylene (HDPE) or fibreglass shells, central drain systems, paddlewheel or blower-based aeration columns, and real-time water-quality probes. The tank geometry is engineered to maintain a homogenous floc suspension — typically 10–15 mL/L total suspended solids — so fish are never exposed to oxygen-depleted dead zones.
Recirculating Aquaculture Systems (RAS): High-Density, Low-Water Fish Farming
A recirculating aquaculture system (RAS) is the gold standard for indoor, climate-controlled, and biosecure fish production. Unlike traditional ponds, a RAS system aquaculture setup continuously filters, treats, and recirculates the same water — using up to 99% less freshwater than flow-through systems. ARK AQUATECH engineers custom RAS systems for tilapia, salmon, trout, shrimp, catfish, and ornamental fish, across scales from small pilot units to large commercial facilities.
- Continuous mechanical & biological filtration removes solids and converts ammonia
- UV sterilisation and ozone dosing eliminate pathogens without antibiotics
- Dissolved oxygen maintained at 6–9 mg/L around the clock via liquid oxygen or pure-oxygen diffusers
- Temperature control systems sustain optimal species-specific growth ranges
- Fish density 10–40× higher than open-pond systems per unit of water
- Water reuse rate of 95–99%, dramatically reducing freshwater consumption
Our recirculating aquaculture systems incorporate the latest aquaculture water treatment technologies — including drum filters, moving bed biofilm reactors (MBBR), protein skimmers, ozone generators, and liquid oxygen injection — to ensure your stock never experiences suboptimal water conditions. Combined with our smart automation platform, every parameter is monitored and adjusted automatically 24/7, reducing labour costs and human error.
Get RAS System QuoteComplete Fish Farming Technology
Under One Roof
From site selection and feasibility studies to system commissioning and operator training, ARK AQUATECH is India's most comprehensive fishery technology partner. Our integrated approach combines proven aquaculture systems engineering with hands-on field support so you get the best return on your fish farming investment.
Biofloc Tank Design & Supply
Custom-fabricated HDPE and fibreglass biofloc tanks in 10,000 L – 1,00,000 L capacities. Each biofloc fish tank is engineered for optimal floc suspension, aeration uniformity, and ease of harvest. We provide transparent biofloc tank price breakdowns with no hidden costs.
RAS System Engineering
End-to-end recirculating aquaculture system design including water flow modelling, filter sizing, oxygen budgeting, and biosecurity protocols. Our RAS system aquaculture projects have achieved stocking densities of up to 80 kg/m³ for tilapia and 60 kg/m³ for catfish.
HDPE Pond Lining
Food-safe, UV-stabilised HDPE geomembrane liners for earthen ponds, biofloc pits, and sump tanks. Our lining solutions prevent seepage, reduce algae, and extend pond life by 15–20 years — a foundational investment for any modern aquaculture system.
Aeration Systems
Paddlewheel aerators, root-blower diffuser networks, and venturi injectors sized precisely for your biomass load. Proper aeration is the single most critical factor in biofloc fish farming success — our systems maintain dissolved oxygen above 5 mg/L at peak stocking density.
Aquaculture Water Treatment
Integrated water treatment trains including mechanical filtration, biological nitrification, UV sterilisation, ozone dosing, CO₂ stripping, and automated chemical dosing. Protects your stock from ammonia spikes, pathogen outbreaks, and oxygen depletion events.
Smart Automation & IoT Monitoring
Real-time dashboards, automated feeders, dissolved oxygen controllers, pH dosing pumps, and SMS/WhatsApp alert systems. Our fish farming technology platform lets you manage multiple farms remotely from a single app — reducing labour by up to 40%.
Why Advanced Aquaculture Systems Are Transforming Indian Fish Farming
India is the second-largest aquaculture producer in the world, yet the majority of domestic fish farms still rely on decades-old earthen pond technology with low productivity, high disease risk, and heavy freshwater consumption. The shift toward advanced aquaculture systems — particularly biofloc fish farming and recirculating aquaculture systems (RAS) — represents the single biggest opportunity for Indian fish farmers to double or triple yields while halving operating costs.
Bio floc technology is especially well-suited to Indian conditions: it works in limited land areas, requires no large water body, and produces higher-protein fish at lower feed costs. A typical 10,000-litre biofloc tank can produce 500–800 kg of tilapia or catfish in a 120-day cycle — compared to 50–80 kg from a comparable traditional pond. When you factor in reduced water costs, lower feed conversion ratios, and the ability to run 3–4 cycles per year, the economics of bio floc farming are compelling for farms of any size.
For operators targeting premium markets — export-grade fish, live fish for urban restaurants, or high-value species like trout and barramundi — a full recirculating aquaculture system provides the biosecurity and water quality consistency that open-pond systems simply cannot guarantee. RAS also enables year-round production irrespective of monsoon, drought, or seasonal temperature swings, giving Indian fish farmers unprecedented control over their supply chains and profitability.
Underlying both technologies is the importance of robust aquaculture water treatment. Ammonia toxicity and oxygen depletion remain the leading causes of mass mortality events on Indian farms. ARK AQUATECH's integrated treatment systems continuously monitor and correct 14 water quality parameters — dissolved oxygen, pH, ammonia, nitrite, nitrate, alkalinity, salinity, turbidity, temperature, CO₂, ORP, TDS, hardness, and pathogen load — so your fish grow in optimal conditions every day of every cycle.
Our fish farming technology approach is holistic: we don't just supply equipment, we partner with you through every phase — site feasibility, infrastructure design, system installation, water quality commissioning, species selection, stocking strategy, feed management, and post-harvest logistics. This full-cycle fishery technology support is why ARK AQUATECH farmers consistently outperform regional benchmarks by 25–40% in production efficiency.
Frequently Asked Questions
Everything you need to know about biofloc fish farming, RAS systems, and aquaculture water treatment.
Which fish species work best in a biofloc system?
Tilapia, catfish (Pangasius), rohu, common carp, and shrimp (Litopenaeus vannamei) are the most commonly farmed species in biofloc fish tanks. ARK AQUATECH designs each biofloc fish farming system around species-specific stocking density, pH, salinity, and temperature requirements.
What is the difference between a RAS system and biofloc aquaculture?
A Recirculating Aquaculture System (RAS) relies on external mechanical and biological filtration infrastructure — drum filters, biofilter media, UV units — to clean and recirculate water. Bio floc technology, by contrast, maintains the microbial ecosystem inside the tank itself. Many modern advanced aquaculture systems integrate both approaches: a biofloc tank at the core with a secondary RAS polishing loop for maximum biosecurity and productivity.
How much does a complete RAS system cost in India?
A turnkey recirculating aquaculture system from ARK AQUATECH starts at approximately ₹12–25 lakh for a small-scale indoor unit (1–5 MT/year capacity). Larger commercial RAS projects (50–500 MT/year) are custom-engineered and priced per detailed site surveys. Contact our team for a free feasibility report and RAS cost estimate.
What is aquaculture water treatment and why does it matter?
Aquaculture water treatment refers to the suite of physical, chemical, and biological processes used to maintain optimal water quality for fish and shrimp. Poor water quality is responsible for over 70% of production losses in Indian fish farming. ARK AQUATECH's integrated water treatment solutions — covering aeration, biofiltration, UV sterilisation, and automated dosing — keep ammonia, nitrite, and pathogen loads within safe thresholds 24/7.
Do you provide after-sales support and training?
Yes. Every ARK AQUATECH installation includes a structured onboarding programme, on-site commissioning, operator training, and a dedicated support helpline. Our fishery technology experts also conduct quarterly farm audits to optimise feed rates, stocking density, and water quality parameters for peak production.
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Ready to Build Your Advanced Aquaculture System?
Whether you need a turnkey biofloc fish farming setup, a high-density recirculating aquaculture system, or a complete aquaculture water treatment plant — our engineers are ready to deliver. Get a free consultation and site-specific feasibility study today.