Aquaculture monitoring and IoT: water-quality sensors, alarms and dashboards
FishMatch helps commercial fish and shrimp farms source water-quality monitoring and IoT systems — dissolved oxygen, temperature, pH, salinity and ammonia sensors, gateways, alarms and dashboards — matched to farm layout, connectivity and the parameters that actually put your crop at risk.
What water quality parameters should a commercial farm monitor?
Dissolved oxygen first — it kills fastest. Then temperature, pH and salinity as continuous measurements, with ammonia (TAN), nitrite, alkalinity and turbidity monitored continuously in intensive systems and by sampling elsewhere. Every commercial installation needs alarm escalation to a person, not just a dashboard: a DO reading nobody sees at 03:00 has no value.
- Measures dissolved oxygen continuously at the depth and location where it actually limits the crop.
- Tracks temperature, pH and salinity so trends are visible before they become events.
- Raises alarms by SMS, call or app when a parameter crosses a threshold.
- Logs data for certification, insurance and post-mortem analysis of a bad cycle.
- Triggers aerators, oxygen valves or pumps automatically on DO set-points.
- Consolidates multiple ponds, tanks or cages into one operator view.
When is FishMatch a good fit for a buyer?
FishMatch can be a fit when a buyer needs structured RFQ intake, aquaculture-specific calculators, project-specific technical information and a clearer procurement path for monitoring & iot and related aquaculture project scope. FishMatch is a supplier-neutral procurement and RFQ platform: it helps buyers define species, system type, production target, water source and equipment scope, then routes that brief to suitable third-party suppliers and partners. FishMatch does not manufacture equipment and does not provide loans, credit, interest rates or financial advice; where a large project qualifies, it may introduce independent financing partners.
Best for
- ·Aquaculture investors and project developers
- ·Shrimp farm developers and fish farm owners
- ·Consultants preparing an RFQ on behalf of a client
- ·Governments, development programmes and EPC contractors
- ·Buyers who need help defining species, system type, production target, water source and equipment needs
- ·Buyers who need calculators and structured intake before requesting offers
Not ideal for
- ·Aquarium, hobby or ornamental fish equipment
- ·Small retail purchases and single spare parts
- ·Buyers who want instant fixed pricing without project details
- ·Requests outside aquaculture and related systems
- ·Buyers expecting guaranteed financing, credit approval or interest rates
- ·Buyers who cannot provide basic species, system, location or capacity details
Monitoring & IoT Systems: product-type guides
Each guide covers what the equipment does, published specification ranges, sizing, selection points and RFQ questions. Product types only — no supplier names or prices.
- Water quality sensors
DO, pH, ORP and salinity probes, sondes and IoT stations linked to alarms and aerators.
Typical monitoring & iot systems we source
- DO sensors
- pH & temperature
- IoT gateways
- Cloud dashboards
- Alarms
Monitoring & IoT by market
Country planning pages — check local requirements and logistics; a country link does not confirm supplier availability.
Supplier directories
Country research and project scoping. Supplier availability and service scope require confirmation for each project.
Species and production systems served
DO, temperature, pH, salinity and alkalinity; nightly DO minima decide stocking density.
DO and temperature dominate; ammonia matters most in tanks and cages at high density.
DO, CO₂, temperature and TAN in RAS; oxygen, temperature and currents at sea.
Tightest tolerances of any system; redundancy on measurement, not just on equipment.
Capacity bands — what scale this suits
Exact system sizing depends on species, peak biomass, production target, stocking density, water temperature, water quality and site conditions. The bands below are planning orientation only.
Handheld meters plus one or two fixed DO probes on the highest-risk ponds, with SMS alarms.
Fixed multi-parameter probes per pond or tank group, gateway, cloud dashboard and alarm escalation.
Full sensor network with automated aerator and oxygen control, redundant probes on life-support duty.
SCADA integration, historian logging, compliance reporting and dual-path connectivity.
Specifications that change the quotation
- Parameters required, measurement range and accuracy at your salinity and temperature.
- Sensor technology — optical versus galvanic DO changes calibration and consumable cost.
- Calibration interval, consumable cost and expected probe life in your water.
- Connectivity available on site: cellular coverage, LoRa, Wi-Fi or cabled.
- Power at the measurement point: mains, solar or battery, and autonomy during outages.
- Alarm escalation path and whether it works when the internet does not.
- Ingress protection, fouling resistance and cleaning regime in warm or saline water.
What affects the cost
- Number of measurement points and parameters per point.
- Sensor grade and accuracy class.
- Consumables and calibration frequency over the system life.
- Connectivity infrastructure needed to cover the site.
- Level of control integration: monitoring only versus automated aerator and oxygen control.
- Software licensing, dashboards and reporting.
- Installation, commissioning and operator training.
We publish no fixed prices. Equipment pricing is project-specific and depends on scope, materials, freight, duties, installation and commissioning at your site.
Request a project-specific quoteInformation suppliers need to quote
Send these with your brief so suppliers can respond against the same technical and commercial basis instead of issuing provisional offers.
- Country, site and connectivity available (cellular, Wi-Fi, none)
- Species and production system
- Number of ponds, tanks or cages and the distance between them
- Parameters required at each point
- Water temperature and salinity range
- Power availability at measurement points
- Whether automated aerator or oxygen control is required
- Existing farm software the system must integrate with
- Budget range and delivery timeline
Related systems and planning tools
What farm software must record per tank or pond, and how that changes the sensor, alarm and data lines in your RFQ.
What DO monitoring should be controlling.
The process stages your readings reflect.
Parameter-by-parameter diagnosis and corrective equipment.
Set DO alarm thresholds against real demand.
Where instrumentation and alarms sit in a recirculating loop.
Buyer FAQs
Project, seafood supply or RFQ service: which one do you need?
Commercial aquaculture project
Building, expanding or equipping a fish farm, shrimp farm, hatchery, RAS or processing line. You describe species, capacity, system, site and water.
Use the request form on this pageSeafood sourcing
Buying farmed fish or shrimp as a product, not equipment. A separate brief asks for species, specification, volume, destination and cold chain.
Open the seafood sourcing briefHuman-reviewed RFQ service
There is no instant or automated supplier match. Manufacturer research happens after the project requirement is clear and is reviewed by the FishMatch team before any supplier is approached. No quote, price or financing is guaranteed.
How the review works
Buyers pay nothing. Managed requests start at USD 250,000: total project value for farms and equipment, or total annual or seasonal program value for seafood. FishMatch Group owns no farms or stock and guarantees no availability, price, quality, approval or delivery. Hobby, aquarium, backyard and ornamental systems are outside this service; the free calculators stay open to everyone. Free calculators
Explore aquaculture and RAS suppliers here for research and market discovery, or start with your project requirements so FishMatch can help structure the RFQ and identify relevant system providers for that specific production plan.
Directory — research
Browse categories, countries and technology types to understand the market and which system types exist. Nothing is requested and no supplier is contacted.
Project sourcing — RFQ
Define species, system, production target and site conditions, size the requirement with the planning tools, and build one structured RFQ. Manufacturer research follows the requirement.
- FishMatch helps prepare aquaculture RFQs and source relevant suppliers.
- Supplier and manufacturer listings are provided for independent research, transparency and reference. Listing does not constitute certification, endorsement, qualification for a specific project or automatic introduction.
- Buyer follow-up and supplier selection are handled by FishMatch.
There is no instant or automated supplier match. Manufacturer research happens after the project requirement is clear and is reviewed by the FishMatch team before any supplier is approached.
Manufacturers can register in the free directory and keep their company details up to date. Being listed is a research and visibility surface — it does not create an automatic connection to buyers, and it does not replace the human sourcing process.
Supplier and manufacturer listings are provided for research, transparency and discovery only. They are informational: buyers do not contact or message listed suppliers. Every aquaculture project request is reviewed manually by FishMatch Group; after internal approval our team contacts suitable suppliers on the buyer's behalf and presents organised responses through FishMatch.
Buyer guides
Related equipment buying guides
Practical guides for specifying, comparing and buying aquaculture equipment for commercial fish and shrimp projects.
- Shrimp farming equipment: what to buy and how to start
- RAS farm cost: CAPEX, OPEX and comparing system prices
- How to choose aerators for fish and shrimp ponds
- How to choose automatic fish feeders
- Aquaculture pumps, pipework and valves: buyer's guide
- UV and ozone disinfection equipment for fish farms
Direct answer
What should a fish farm monitoring and automation system measure?
Measure the limits that kill fish fastest, with alarms on each: dissolved oxygen, temperature, pH, ammonia, nitrite and CO₂. Published guidance for most farmed fish: un-ionized ammonia below 0.05 mg/L, nitrite below 1 mg/L, free CO₂ below 20 mg/L. pH must be logged because at pH 8.75 up to 30% of ammonia is in the toxic form. Add backup power, remote alerts and automatic oxygen control.
| Parameter | Published limit | What to automate |
|---|---|---|
| Dissolved oxygen | Air saturation rarely above 8.75 mg/L above 20 °C; pure oxygen raises it to ~43 mg/L | Low-oxygen alarm, oxygen control |
| Un-ionized ammonia-N | Below 0.05 mg/L | Calculated from TAN, pH and temperature |
| pH | At pH 8.75 up to 30% of ammonia is un-ionized | Logging and pH dosing |
| Nitrite-N | Below 1 mg/L in most cases | Alarm and trend |
| Free CO₂ | Below 20 mg/L for most species | Alarm and degasser control |
How do you work out the monitoring system?
- List every parameter that has a published limit for your species.
- Set an alarm just inside each limit.
- Log pH and temperature with ammonia so the toxic share can be calculated.
- Link low-oxygen alarms to automatic oxygen and backup power.
- Ask suppliers which alarms reach a phone and who responds.
Worked example: Example alarm list for a tank farm
| Total ammonia-N reading | 2 mg/L (example) |
| Toxic share at pH 8.75 (up to 30%) | Up to 0.6 mg/L un-ionized |
| Published limit | 0.05 mg/L — up to 12× over |
| CO₂ alarm | Before 20 mg/L |
| Oxygen note | Air stones transfer at most ~40% of oxygen vs over 90% for well-designed oxygen diffusion |
The 2 mg/L reading is an example input; the limits and percentages are published figures (SRAC 451/453). Alarm setpoints for your site come from your biologist and supplier.
What are common monitoring system planning mistakes?
- Monitoring oxygen only and not CO₂ or pH.
- Reading total ammonia without pH and temperature.
- Alarms that sound on site but reach nobody at night.
- No backup power for sensors, controllers and oxygen.
- Not budgeting for sensor cleaning and calibration.
What should I send suppliers for a monitoring system quote?
- Species, system type and number of tanks or ponds
- Parameters to measure and alarm limits
- Remote alerts, logging and control wanted
- Power reliability and backup
- Scope: sensors, controllers, software, installation, training
What are the limits of these figures?
Limits are general tank-system values from US extension guidance (SRAC 451/453, 1998–1999); species, life stage and salinity change safe ranges, so confirm setpoints with your biologist and the supplier.
Sources: Losordo, Masser & Rakocy, SRAC Publication 451 (1998): water-quality limits and ammonia toxicity with pH; Losordo, Masser & Rakocy, SRAC Publication 453 (1999): oxygen saturation and transfer figures
Before you request quotes
Equipment scope
What equipment does a commercial aquaculture project actually need?
A grow-out project typically needs holding infrastructure (tanks, ponds or cages), water movement (pumps, piping, valves), aeration or oxygenation, water treatment appropriate to the system, feeding equipment, grading and handling gear, monitoring and alarms, and backup power. RAS adds mechanical filtration, biofiltration, degassing, disinfection and tighter process control. Hatchery and processing scopes are specified separately.
Which equipment should be specified before requesting quotes?
Specify the items whose sizing changes everything downstream: design biomass and stocking density, water exchange or recirculation rate, oxygen demand at peak temperature, and installed pumping head. With those four fixed, suppliers can quote aeration, filtration, pumps and power on the same basis. FishMatch calculators produce these figures and attach them to the RFQ.
Can equipment be sourced in stages?
Yes, and phased procurement is common. The usual sequence is water supply and holding infrastructure, then aeration and treatment, then automation and monitoring, then processing and cold chain. Staging works when interfaces and capacity headroom are defined at the start; otherwise later phases force replacement rather than addition.