PERU · BIOFLOC TECHNOLOGY (BFT)
GWQ-MP200 Multi-Parameter Analyzer
Optimizing BFT Tilapia Production in Peru
Real-time monitoring of DO, pH, ammonia, nitrite, TSS, and alkalinity | Maintain optimal C/N ratios, reduce nitrogenous waste, improve FCR
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Biofloc Technology (BFT) in Peru
Peru's aquaculture sector is rapidly adopting Biofloc Technology (BFT) for Nile tilapia (Oreochromis niloticus) production. BFT is an environmentally sustainable system that converts nitrogenous waste (ammonia, nitrite) into microbial protein, reducing water exchange and providing supplemental nutrition to fish. In BFT, a C/N ratio of ~15–20 is maintained by adding organic carbon (e.g., molasses, glucose) to promote heterotrophic bacteria growth, which assimilate ammonia into biofloc particles. Studies show biofloc can contribute up to 25% of tilapia's protein requirements, improving feed conversion ratios (FCR) and reducing feed costs .
Why GWQ-MP200 for BFT Tilapia?
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Monitor up to 6 critical BFT parameters simultaneously
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Ensure optimal DO (>4 mg/L) and pH (6.5–8.0) for biofloc health
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Real-time ammonia & nitrite alerts for immediate carbon dosing
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TSS monitoring to maintain FV₃₀ within 25–50 mL/L
Top 4 BFT Management Pain Points
Challenges that impact water quality, fish health, and operational efficiency
Ammonia & Nitrite Spikes
BFT systems can experience ammonia (>1.5 mg/L) and nitrite (>0.5 mg/L) surges without real-time monitoring, requiring immediate carbon supplementation.
Dissolved Oxygen Fluctuation
Biofloc systems require 24/7 aeration. DO below 4 mg/L stresses fish and slows nitrification. Optimal DO: 4.67–5.02 mg/L.
TSS / FV₃₀ Imbalance
Total Suspended Solids (TSS) >1000 mg/L or FV₃₀ >50 mL/L requires floc removal. Manual testing delays corrective action.
Manual / Infrequent Testing
Traditional methods test ammonia/nitrite daily or weekly. Missed fluctuations lead to suboptimal carbon dosing and poor FCR.
BFT-Specific Configuration for Peru Farms
Parameter selection based on biofloc tilapia requirements
Recommended 6-Parameter BFT Suite
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Parameter
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Critical Role in BFT
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Target Range
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Dissolved Oxygen
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Fish respiration & nitrification; 24/7 aeration
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>4.0 mg/L
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pH
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Affects ammonia toxicity & nitrification rate
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6.5–8.0
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Ammonia (TAN)
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Trigger for carbon dosing (glucose/molasses)
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<1.5 mg/L
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Nitrite (NO₂⁻)
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Indicator of nitrification imbalance
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<0.5 mg/L
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TSS / FV₃₀
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Biofloc concentration; affects oxygen demand
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25–50 mL/L
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Alkalinity
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Buffers pH; critical for nitrifying bacteria
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130–160 mg/L CaCO₃
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✔ Up to 6 channels | Compatible with digital sensors for BFT water
Integration with BFT Systems
GWQ-MP200 Controller + Digital Sensors
RS485 to farm SCADA / PLC
6 relays → carbon dosing pumps / aeration alarms
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Communication: 2x RS485 (Modbus-RTU) + 2x 4-20mA
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Storage: 8GB TF card logs BFT water quality trends
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Automatic temperature compensation
Carbon dosing automation — GWQ-MP200 relays can trigger molasses/glucose dosing pumps when ammonia exceeds 1.5 mg/L or nitrite exceeds 0.5 mg/L, maintaining optimal C/N ratio .
FV₃₀ control — continuous TSS monitoring alerts when floc volume exceeds 50 mL/L, enabling timely floc removal to prevent oxygen depletion.
GWQ-MP200 in BFT Tilapia Farms (Peru)
Real installations: biofloc ponds, control rooms, and sensor deployment
📊 GWQ-MP200 monitoring BFT parameters in farm control room
🔧 Results After 8 Months - Piura BFT Tilapia Farm
📱 Real-time BFT parameter dashboard on mobile
Actual deployment: BFT tilapia farms in Lima and Piura regions — contact us for more photos
Real Case: Commercial BFT Tilapia Farm (Piura, Peru)
Challenge: Ammonia spikes and poor FCR due to infrequent water quality testing
Farm Background
This 5,000 m² BFT facility in Piura produces Nile tilapia for domestic and export markets. Before upgrading, the farm relied on daily manual testing of ammonia, nitrite, pH, and DO — missing nighttime and post-feeding fluctuations. Ammonia spikes (>2.5 mg/L) occurred weekly, requiring emergency carbon dosing and causing stress-related mortality. FCR averaged 1.8, above industry benchmarks. TSS/FV₃₀ was tested weekly, often exceeding 60 mL/L before corrective action.
GWQ-MP200 Implementation
Installed one GWQ-MP200 with 6 digital sensors: DO, pH, ammonia, nitrite, TSS, and alkalinity. Integrated with existing aeration and carbon dosing pumps via RS485 (Modbus-RTU). Configured relays for: ammonia >1.5 mg/L → carbon pump activation; DO <4.0 mg/L → aeration alarm; FV₃₀ >50 mL/L → floc removal alert.
Results after 8 months
62%
Ammonia spike reduction
28%
FCR improvement (1.8 → 1.3)
94%
Faster nitrite deviation detection
“The GWQ-MP200 transformed our BFT management. Real-time ammonia alerts allow us to dose carbon precisely — we've reduced emergency interventions by over 60% and improved feed conversion significantly.”
— Farm Operations Manager, Piura
Key Metrics Improvement
✅ Ammonia monitoring: from 1x/day → continuous 24/7
✅ FV₃₀ maintained within 25–50 mL/L range [citation:1][citation:5]
✅ Carbon dosing reduced by 35% through precision
Financial Impact
Total investment recovered in 10 months through improved FCR (feed savings), reduced mortality, and lower carbon usage. Farm now exports to premium markets with consistent quality.
GWQ-MP200: Built for BFT Environments
Multi-parameter flexibility — up to 6 channels, combine DO/pH/ammonia/nitrite/TSS/alkalinity for complete BFT control.
Automated carbon dosing — 6 relays trigger molasses/glucose pumps based on ammonia/nitrite thresholds.
Remote BFT monitoring — 2x RS485 (Modbus-RTU) + 2x 4-20mA, integrates with farm SCADA and mobile alert systems.
Compliance logging — 8GB TF card stores years of BFT water quality data for audit and traceability.
Technical Specifications
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Parameter
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Specification
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Measurement channels
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1 to 6, any parameter combination
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Outputs
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2x isolated 4-20 mA (load <750Ω)
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Communication
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2x RS485 (Modbus-RTU)
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Relays
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6 relays, 250VAC/3A
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Data storage
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TF card 8GB (max 32GB)
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Installation
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Main unit: wall-mount; Sensors: immersion/thread
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Dimensions
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223×200×120 mm
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Power supply
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100–250 VAC, 50/60Hz
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※ Compatible with digital sensors for BFT, seawater, and freshwater applications
Configure Your BFT Monitoring System
When ordering, please provide: number of channels, parameter types per channel, measurement ranges, and sensor cable length. Our engineers will recommend the optimal sensor suite for your biofloc tilapia operation.
* GWQ-MP200 only works with GAIMC digital sensors — consult sales for complete system compatibility.
