Why Aquaculture Projects Should Start With the Production Requirement — Not the Supplier

Most aquaculture projects begin with a search for cages, tanks, aerators or feed systems. The buyer collects contacts, sends short enquiries and receives a stack of offers that look detailed but cannot be compared, because each supplier quietly filled the gaps in the brief with its own assumptions.

Ten quotations built on ten different production assumptions are not ten options. They are ten different projects. One supplier assumed a lower stocking density, another assumed a different survival rate, a third excluded pumping, a fourth priced a building the fifth never included.

The cost of this is rarely visible at the quotation stage. It appears later, when the installed system cannot hold peak biomass, when the oxygen supply is undersized for the hottest month, or when the cheapest offer turns out to exclude installation, commissioning and spare parts.

• Different assumptions about annual and peak production volume
• Different stocking densities and survival assumptions behind the same tonnage
• Different water systems: flow-through, partial reuse or full recirculation
• Incomplete or missing feed assumptions and feed conversion expectations
• Inconsistent oxygenation and aeration requirements between offers
• Different automation, monitoring and control levels quoted as equivalent
• Processing, grading and cold-chain scope included by some suppliers and omitted by others
• Price bases that mix ex-works, delivered, installed and commissioned scopes

Species and target production are the two inputs that drive nearly every engineering decision that follows. Shrimp, tilapia, salmon, seabass, catfish and trout each impose different temperature ranges, oxygen demand profiles, salinity requirements, handling constraints and cycle lengths.

The production target has to be expressed properly. An annual tonnage figure alone is not a specification: the system is sized for peak standing biomass, not for the yearly total, and peak biomass depends on harvest size, cycle length, number of batches and survival.

Market destination matters as much as biology. A live-market tilapia farm, a chilled fillet operation and an export shrimp project with a processing and cold-chain requirement will not converge on the same facility, even at identical tonnage.

• Species and, where relevant, strain or genetic line
• Target annual production and expected peak standing biomass
• Harvest size, cycle length and number of cycles per year
• Expected survival and the growth curve assumed behind it
• Market destination: live, fresh, chilled, frozen, processed or export
• Planned expansion phases, so the first build does not block phase two
• Local operating conditions: climate, labour, power reliability and regulation

There is no universally superior production system. Ponds, cages, raceways, RAS and hybrid configurations each fit a particular combination of species, site, water availability, energy cost and market. The correct system is the one that fits the project, not the one with the strongest marketing.

• Match the system to water availability and energy cost before comparing brands
• Check whether the species tolerates the temperature and oxygen regime the site can realistically maintain
• Confirm the system can be built in phases if the financing plan requires it

Water is the operating environment, the transport medium for oxygen and waste, and the single largest constraint on design. Equipment selected without a clear picture of the water source and its seasonal variation is selected on hope.

Source quality, temperature range, salinity, alkalinity and the reliability of supply determine treatment, pumping and oxygenation requirements. Discharge rules determine whether effluent treatment is a minor item or a major capital line.

• Water source: borehole, river, lake, sea, municipal or reused water
• Seasonal temperature range, not just the annual average
• Salinity, pH, alkalinity, hardness, iron, nitrogen and suspended solids
• Dissolved oxygen availability and the worst-case warm-month demand
• Required exchange rate or recirculation ratio
• Treatment and filtration: solids removal, biofiltration, disinfection, degassing
• Pumping head, flow and redundancy
• Discharge permits, effluent limits and monitoring obligations
• Backup systems: standby pumps, emergency oxygen and generator capacity

Between the project idea and the first supplier enquiry there is a calculation stage that most buyers skip. Planning-level numbers turn a production ambition into a scope that can be quoted, and they expose impossible combinations before money is committed.

FishMatch calculators are indicative planning tools. They do not replace engineering design, biological validation or supplier quotations, and no universal operating figures should be treated as guaranteed. Their value is that they force the assumptions into the open, in writing, with a date attached.

• Peak standing biomass from harvest size, cycle length and survival
• Tank, pond or cage volume required to hold that biomass at a defensible density
• Water flow and exchange or turnover requirements
• Pumping duty: flow, head and installed power
• Oxygen demand at peak biomass and worst-case temperature
• Feed demand per cycle and per year, plus storage volume
• Energy demand and generator sizing for life-support loads
• Indicative CAPEX range and a first-pass return calculation

A facility that looks attractive on capital cost can be weak the moment it starts operating. Feed, oxygen and electricity dominate operating cost in almost every intensive system, and all three are decided at the design stage, not later.

Feed conversion, feed availability in the country, storage conditions and feeding method interact with growth and water quality. Aeration and oxygenation choices set both the biological ceiling and a permanent electricity bill. Backup power is not an optional accessory in any system where oxygen supply is continuous.

• Feed conversion assumptions and how they were derived
• Local feed supply, import dependence, lead time and price volatility
• Feed storage volume, humidity control and stock rotation
• Feeding method: manual, automatic feeders, demand feeders or centralised blowers
• Aeration versus pure oxygen injection, and the installed power each implies
• Pumping strategy and whether gravity can replace part of it
• Electricity tariff, reliability and the cost of running at peak load
• Backup power and emergency oxygen sized for the actual life-support load
• Monitoring and alarms, so a failure is detected in minutes rather than hours

Projects are frequently designed as a grow-out facility with the rest of the chain treated as someone else's problem. Seed supply, harvest handling, processing capacity and cold storage all have to match the production plan, or the bottleneck simply moves.

A hatchery that cannot supply the required seed at the right time forces stocking delays. A processing line sized below the peak harvest week forces either quality loss or staggered harvesting that was never in the biological plan.

• Hatchery and nursery capacity, timing and biosecurity separation
• Seed quality, source reliability and transport survival
• Grow-out capacity matched to seed supply and harvest scheduling
• Harvesting method, grading and live-handling equipment
• Processing throughput at peak harvest, not average
• Chilling, freezing and cold storage capacity
• Transport, packaging and export documentation requirements

A structured RFQ is the point at which the planning work becomes procurement leverage. When every supplier answers the same questions in the same units, differences in price become meaningful instead of misleading.

It also changes how suppliers respond. A serious, complete brief attracts engineering attention; a two-line enquiry attracts a template.

• Country and exact project location
• Species and target annual production, with peak biomass
• Preferred or shortlisted system type
• Water source, quality data and seasonal temperature range
• Site availability, land status and permitting position
• Utilities: power supply, reliability, backup and water rights
• Feed availability and preferred feeding approach
• Oxygenation and aeration expectations
• Automation, monitoring and control level required
• Processing and cold-chain scope, if included
• Installation, commissioning and training requirements
• Spare parts, warranty and after-sales expectations
• Budget range, financing requirements and target timeline

The lowest equipment price is not the lowest project cost. Comparison has to run across the full delivered scope, the energy the system will consume for its whole life, and what happens when something breaks.

The practical method is a single comparison sheet where every supplier response is mapped to the same line items, and every exclusion is recorded as an explicit cost the buyer will have to carry elsewhere.

• Guaranteed or stated production capacity and the assumptions behind it
• Equipment included, item by item
• Infrastructure explicitly excluded: civil works, buildings, connections
• Pumping, oxygenation, filtration and backup scope
• Automation, controls and monitoring systems
• Installation, commissioning, start-up support and training
• Spare parts package, warranty terms and response times
• Energy demand and expected maintenance workload
• Scalability to the next production phase
• Delivery terms, lead time and payment structure

Financing shapes the design. Phasing, equipment origin, documentation standards and the level of technical due diligence required all depend on how the project will be funded, and retrofitting those requirements after a design is locked is expensive.

FishMatch is not a lender, bank or financing approval system. FishMatch can help structure the project documentation and explore possible financing pathways with relevant third parties; approval, terms and availability rest entirely with those parties.

• Supplier credit and staged payment structures
• Export credit agency support tied to equipment origin
• Development finance for projects with employment or food-security impact
• Commercial bank lending against a documented business case
• Project finance pathways for larger, phased developments
• Equity, grant and blended structures where relevant locally

FishMatch is a structured aquaculture procurement platform, not a supplier directory. The work starts with the project, not with a list of manufacturers, and every brief is reviewed by a human before suppliers are approached.

The value proposition is simple: build the right aquaculture system, not just buy equipment.

1. 1.Define: Species, target production, harvest size, cycle plan, site and market destination are written down before anything is priced.
2. 2.Calculate: Calculators produce indicative biomass, volume, flow, oxygen, feed, energy and investment figures with assumptions recorded.
3. 3.Configure: The production system and its subsystems — water treatment, pumping, oxygenation, feed, monitoring — are aligned to the site.
4. 4.Structure the RFQ: A single, complete scope is issued so suppliers answer the same questions in the same units.
5. 5.Compare: Responses are normalised across capacity, inclusions, exclusions, energy, service and warranty, not price alone.
6. 6.Finance and implement: Financing pathways are explored with relevant third parties, and the buyer contracts directly with the chosen supplier.