Nexus Fish Network™ User Manual

AI-Based Data-Driven Fish Farm Automation System

1

Introduction

The Nexus Fish Network™ system is an AI-powered platform for automating fish pond management. It helps monitor water quality, automate aeration and feeding, reduce costs, improve fish health, and boost productivity.

This system integrates real-time sensor data with artificial intelligence to make intelligent decisions about pond management, reducing manual labor while increasing yield and efficiency.

Note: This system is designed for fish farmers in Bangladesh and South Asia, with support for species including Pangasius, Tilapia, Carps, Koi, Shingi, Pabda, and Shrimp.
2

System Components

Hardware

  • DO, pH, Temperature, Ammonia Sensors
  • Water Level Sensor
  • Automatic/Manual Feeder
  • Aeration System (Paddle Wheel, Turbo, Diffused Air)
  • IoT Controller Box with GSM/4G/Wi-Fi module
  • Solar or AC Power Supply (Optional Backup Battery)

Software

  • Web & Mobile App (iOS/Android)
  • AI Algorithm Engine
  • Cloud Database with Secure Backup
  • Real-Time Dashboard and Control Panel
3

Getting Started

  1. Install all sensors at recommended pond depth (typically 1-1.5 ft below surface).
  2. Connect aerators, feeder, and pump to IoT Controller Box.
  3. Power up and ensure network connectivity (mobile data or Wi-Fi).
  4. Use the app/web dashboard to register your pond:
    • Pond size & depth
    • Species stocked
    • Stocking weight and number
    • Feed type & FCR
  5. Calibrate sensors through the app.
Ensure all hardware components are properly installed and connected before powering up the system.
4

Dashboard Overview

Upon login, the dashboard displays:

  • Live water quality data (DO, temp, pH, ammonia)
  • Fish biomass & estimated growth
  • Aerator and feeder status
  • Weather forecast
  • Actionable alerts
  • Historical charts and reports
Dissolved Oxygen 6.2 mg/L
Temperature 28.5°C
pH Level 7.9 pH
Ammonia 0.2 mg/L

The dashboard provides a comprehensive overview of your pond's status with color-coded indicators for quick assessment.

5

Real-Time Monitoring

Real-time data is pulled every 5-10 minutes with color-coded status indicators:

  • Green zone = Optimal conditions
  • Yellow zone = Warning conditions
  • Red zone = Critical conditions

Custom thresholds can be set based on species and season. For example:

  • DO > 4.5 mg/L for Pangasius
  • Temperature between 26-32°C for Tilapia
  • pH between 6.5-8.5 for most species
Critical parameters will trigger immediate alerts and automated responses to prevent fish mortality.
6

Automation Modules

A. Smart Aeration

  • Turns aerator ON/OFF based on DO, temperature, fish biomass
  • Adjusts runtime to optimize energy use
  • Weather-adaptive (e.g., preemptive aeration before rain)

B. Feeding Automation

  • AI predicts feeding rate by:
    • Biomass growth
    • SGR model
    • Water temperature and fish activity
  • Manual override available

C. Water Exchange Automation

  • Triggered when ammonia or pH is out of range
  • Suggests volume and duration for water exchange
7

Manual Overrides

From the dashboard, you can:

  • Start/stop aerators, feeders, or pumps manually
  • Override AI-suggested schedules
  • Apply emergency protocols

Manual Control Panel

Manual Mode Active
Aerator
Feeder
Water Pump

Manual controls provide flexibility while maintaining the safety protocols of the system.

8

Data Input & Calibration

Manually enter:

  • Fish stocking data (weight, number, date)
  • Feed brand & protein %
  • Water visibility (Secchi disk)
  • Initial sensor calibration values

Calibration is recommended every 2 weeks or when anomalies are suspected.

Regular calibration ensures accurate readings and optimal system performance.
9

Notifications & Alerts

The system generates various alerts:

  • Low DO or high ammonia warning
  • Power failure or aerator malfunction
  • Daily feed recommendation
  • Weekly water quality trends
  • Harvest readiness alerts
  • Economic projection (costs vs. revenue)

Alerts are delivered via:

  • Push notifications
  • SMS messages
  • Email alerts
  • In-app notifications

Critical Alert: Low Dissolved Oxygen

DO level at 2.8 mg/L in Pond 1. Aerator activated. Suggested action: Check aerator function and water circulation.

Today at 3:45 PM

10

Reports & Analytics

Download or view:

  • Weekly water quality report
  • Growth forecast and biomass projection
  • Feed efficiency & FCR chart
  • Economic projection (cost vs. expected income)

All data is exportable in PDF or Excel format.

Sample Growth Forecast Report

Pangasius
Pond 1 | Stocked: 1,500 fish
Current Weight: 420g
Projected Harvest: 1.2kg in 45 days
[Growth Chart Visualization]
Economic Projection
Total Costs: ৳ 85,000
Expected Revenue: ৳ 1,25,000
Projected Profit: ৳ 40,000
11

Maintenance Guidelines

  • Clean sensors every 7-10 days
  • Check IoT box moisture sealing monthly
  • Replace faulty sensors as needed
  • Ensure feeder and aerator motors are not clogged
  • Review firmware updates via the dashboard
Regular maintenance ensures accurate readings and prolongs the lifespan of your equipment.
12

Troubleshooting

Issue Possible Cause Solution
No data on dashboard Connectivity issue Check SIM/internet, reboot controller
DO values stuck Sensor fouling or misplacement Clean or recalibrate sensor
Aerator doesn't turn on Relay issue or motor failure Test relay; check wiring or motor
Feed too much/less Wrong fish input or FCR estimate Update fish weight or feed settings
Inaccurate pH readings Calibration needed or dirty sensor Clean and recalibrate pH sensor
If problems persist after troubleshooting, contact our support team for assistance.

Nexus Fish Network™ - AI-Based Data-Driven Fish Farm Automation System

Version 1.0 © 2025 Nexus Fish Network. All rights reserved.