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hi-tech6 Month Culture PeriodFCR: 1.15

Commercial Indoor Recirculating Aquaculture System (RAS)

कमर्शियल इंडोर रीसर्कुलेटरी एक्वाकल्चर सिस्टम (RAS) • Multi-Species Hi-Tech Indoor System

Commercial aquaculture blueprint covering target water quality tolerances, extruded floating pellet nutrition, biosecure disease prophylaxis, and PMMSY 40%–60% capital grant eligibility.

Net Batch Profit₹33.10 Lakhper standard unit
Expected Biomass50,000 kg50.0 MT total yield
Farmgate Wholesale Rate₹130 / kgBaseline realization
Matsya KCC Limit₹5.0 LakhWorking Capital @ 4%
Culture Engineering

Medium Indoor RAS Unit with 6 to 8 Circular Tanks (50 MT Capacity)

Tailored to maintain high biomass carrying capacity, dissolved oxygen stability, and non-stress environmental conditions.

Commercial Highlights:
  • The pinnacle of precision climate-resilient aquaculture: 98% water reuse through continuous multi-stage filtration
  • Ultra-dense production: Yields 50 tons of live fish annually within an enclosed 400 sq. meter indoor shed
  • Complete environmental control: Biosecure indoor setup prevents outdoor bird diseases, floods, and seasonal temperature swings
  • PMMSY sanctions ₹25.0 Lakhs unit cost with 40% (₹10 Lakhs) to 60% (₹15 Lakhs) capital subsidy
Stocking & Growth Matrix

Stocking Density & Survival Targets

Recommended Stocking Density:50 to 80 kg of biomass per cubic meter of water (50 MT annual harvest)
Survival Benchmark:95% to Market Weight
Feed Conversion Ratio (FCR):1.15 (1 kg biomass gain per 1.15 kg feed)
Water Quality Management

Target Water Chemistry Parameters

Daily monitoring thresholds required to avoid ammonia toxicity, gill asphyxiation, and stress-induced mortalities.

Dissolved Oxygen (DO)6.5 – 8.5 ppm (Pure liquid oxygen / oxygen cone injection)Critical pre-dawn limit
Water pH7.2 – 7.8Buffer with lime/gypsum
Water Temperature26°C – 30°C (Controlled via indoor heat pumps/chillers)Optimal thermal window
Total Ammonia (TAN)< 0.3 ppmToxic unionized NH3
Total Alkalinity120 – 180 ppmAcid-buffering capacity
Salinity Tolerance0 – 30 ppt (Configurable for marine or freshwater)Osmoregulatory range
Nutritional Management

Precision Extruded Pellet Feeding Schedule

Optimized crude protein and feeding frequencies across life stages to minimize feed wastage and maximize growth velocity.

Life StageDurationCrude Protein (CP %)Feed Type & Pellet SizeFeeding Rate (% Biomass)Feeding Frequency
Automated High-Density Precision FeedingContinuous 365 days across staggered tanks32% – 40% CP (Extruded slow-sinking pellets)Ultra-low dust, high-stability extruded floating/slow sinking pellets1.8% to 2.5% calculated via computerized feeder6 times / day
Feeding Tray Inspection: Check feed trays 90 minutes after feeding. If feed remains unconsumed, reduce subsequent feedings by 20% to prevent water fouling and lethal ammonia spikes.
Financial Modeling

Medium RAS Unit (50 MT Annual Production Capacity) Profit & Loss Statement

Verified batch operating budget based on commercial hatchery seed costs, floating pellet feed, aeration electricity, and wholesale farmgate prices.

Batch Operating Expenses (OPEX)

Fingerling / Seed Cost:₹1,50,000
Commercial Pellet Feed:₹26,00,000
Power, Aeration & Generator Fuel:₹3,80,000
Probiotics, Lime & Medicines:₹60,000
Total Batch OPEX:₹31,90,000

Harvest Revenue Realization

Total Harvest Biomass:50,000 kg
Average Farmgate Wholesale Rate:₹130 / kg
Culture Duration:6 Months
Gross Batch Turnover:₹65,00,000
Net Farmer Return
₹33,10,000
Net Profit per batch cycle
Payback Horizon:18 Months
Matsya KCC Working Capital:₹5.0 Lakh
* Assumes 40%–60% PMMSY pond/tank capital subsidy is availed.
Health Prophylaxis

Critical Disease Diagnosis & Biosecurity Treatments

Immediate identification and legal aquatic medication protocols for pathogens affecting Commercial Indoor Recirculating Aquaculture System (RAS).

Biofilter Collapse / Ammonia Shock

बायोफिल्टर फेलियर एवं अमोनिया शॉक
Causative Pathogen:Systemic failure of Nitrosomonas/Nitrobacter bacteria in MBBR tank
Symptoms:Sudden spike in TAN > 3.0 ppm and Nitrite > 1.0 ppm; fish gasping at tank surface.
Prescribed Treatment / Control:Flush 30% system water with fresh conditioned water; dose commercial nitrifying bacterial starter culture.
SOP Guidelines

5 Golden Aquaculture Rules for Commercial Indoor Recirculating Aquaculture System (RAS)

1

Backwash mechanical micro-screen drum filters (60-micron screen) automatically every 15 minutes to strip solid faecal waste.

2

Maintain Moving Bed Biofilm Reactor (MBBR) media at 50% to 60% filling ratio with high specific surface area bio-chips.

3

Ensure continuous Dissolved Oxygen monitoring with optical DO sensors linked to auto-solenoid oxygen injection cones.

4

Implement strict biosecurity airlocks, footbaths, and UV sterilization to keep pathogens outside the indoor facility.

Interactive Planning

Calculate Production Costs & Profits for Commercial Indoor Recirculating Aquaculture System (RAS)

ICAR-CIFA & NFDB Precision Aquaculture Engine

Fish & Shrimp Farming Profitability Calculator

Calculate total floating feed bags, FCR, harvest biomass, operating expenses, and net profit for pond, biofloc, and RAS culture.

1 Acre Earthen Pond (approx 4,000 sq.m)
₹46/kg
Commercial extruded feed bag
₹135/kg
Live fish / chilled mandi price
Culture Benchmarks for Composite Freshwater Carp:
Feed FCR:1.55
Culture Duration:10 Months
Expected Survival:85%
Target DO:4.5 – 6.5 ppm
Aquaculture P&L Summary

Composite Freshwater Carp

FCR: 1.55
Total Harvest Biomass
3,500 kg(3.5 MT)
Net Estimated Batch Profit₹45.1/kg net
₹1,57,950
Gross: ₹4,72,500OPEX: ₹3,14,550
Feed Required181 Bags(5,425 kg @ 30kg)
Matsya KCC Limit₹1.5 LakhWorking Capital @ 4%
OPEX Cost Breakdown:
Pellet Feed:₹2,49,550
Fingerling Seed:₹28,000
Power & Aeration:₹22,000
Apply for PMMSY 40%–60% Subsidy on State Portal

FAQ

Frequently Asked Questions: Commercial Indoor Recirculating Aquaculture System (RAS) Farming

Conventional ponds require vast land (10 acres) and millions of liters of water. An indoor RAS unit produces 50 tons of fish in just 400 square meters of shed space, recycling 98% of water with zero discharge and complete biosecurity.

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