Nexus Fish Network
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Installation Guidelines

Comprehensive setup guide for Nexus Fish Network™

System Name: Nexus Fish Network™
Target Environment: Freshwater earthen/concrete ponds
Power Options:
Solar/AC with backup battery
Supported Species:
Pangasius Tilapia Carp Koi Shingi Pabda Shrimp
1

Pre-Installation Checklist

Before starting installation, ensure you have:

Pond Measurements

Pond size & depth measured

Power Source

AC line, solar panel, or battery

Network Coverage

Stable mobile network or Wi-Fi coverage

Installation Plan

Sketch of sensor positions, control box, feeder, aerator, etc.

All Components Received:

  • DO, pH, Temperature, Ammonia Sensors
  • IoT Controller Box
  • Aerator system (Paddle Wheel, Turbo, etc.)
  • Auto Feeder
  • Water pump (optional)
  • Power adapters and cables
  • Sensor mounting rods or floats
2

Sensor Installation

A. Dissolved Oxygen (DO) Sensor

  • Depth: 1 to 1.5 ft below water surface
  • Position: Near central area of pond or aerator zone
  • Mounting: Fixed pole or float support
  • Tip: Avoid direct placement under strong aerator flow

B. Temperature Sensor

  • Often built-in with DO sensor
  • Same placement and depth as DO sensor

C. pH Sensor

  • Place away from direct feed or chemical discharge zones
  • Depth: 0.75-1 ft from surface
  • Calibrate weekly

D. Ammonia Sensor

  • Place in areas where organic load accumulates (near inlet/feed zone)
  • Mount on float or fixed pole
  • Calibrate as per instructions (usually biweekly)

E. Water Level Sensor

  • Install vertically at pond edge or inside a pipe well
  • Ensure unobstructed vertical movement
3

IoT Controller Box Installation

A. Mounting

  • Install in a shaded area near the pond (e.g., pump shed or pole mount)
  • At least 2 ft above ground to avoid flood damage
  • Protect from direct rain (weatherproof box)

B. Connections

  • Connect sensor wires to marked ports (DO, pH, Temp, etc.)
  • Plug in relays for:
    • Aerator
    • Feeder
    • Pump (optional)
  • Power up via solar/AC (with battery backup if available)

C. Connectivity

  • Insert SIM card (if GSM module) or connect to Wi-Fi
  • Indicator lights will show signal status
  • Use mobile app/web to test connection
4

Feeder & Aerator Setup

A. Auto Feeder

  • Mount over pond or feed platform
  • Connect to controller (marked feeder relay)
  • Fill feed hopper, avoid moisture
  • Schedule via app (or enable AI feeding logic)

B. Aeration System

  • Paddle Wheel: Install 2-3 ft from pond edge
  • Diffused Air: Distribute lines across the pond
  • Turbo/Propeller: Place at one-third length of pond
  • Connect to aerator relay on control box
  • Confirm functionality using app dashboard
5

Initial System Setup (via App/Web)

  1. Register pond profile (species, area, depth, stocking date, fish weight)
  2. Calibrate all sensors using app wizard
  3. Set preferred DO/pH/ammonia ranges or use AI default settings
  4. Turn ON automation:
    • Smart Aeration
    • Smart Feeding
    • Alert System
  5. Confirm data streaming on dashboard
6

Testing & Validation

  • Confirm live readings for all sensors
  • Manually test relay outputs (turn aerator/feeder ON from app)
  • Cross-check sensor data with manual test kits (DO/pH)
  • Perform first feeding via app
  • Simulate low DO condition to observe aerator response
7

Safety & Tips

  • Ensure waterproof connectors
  • Avoid submerging control box wires
  • Place cables inside protective conduit
  • Train farm personnel on emergency shutdown
  • Keep printed copy of wiring diagram near control unit
  • Install surge protector if using AC power
8

Maintenance Schedule

Component Frequency Task
Sensors Weekly Clean, recalibrate
Controller Box Monthly Check seals, reboot
Aerators/Feeders Monthly Clean and inspect
App Settings Monthly Update biomass data