Buyer guide · Project outcomes · FishMatch Group
How to improve aquaculture project outcomes: plan procurement around species, site and operating conditions
Equipment does not create results on its own. The species you farm, the water and climate at your site, your energy supply, feed, biosecurity, people and market set the conditions the equipment must work in. This guide shows how to turn those conditions into a procurement plan before you ask anyone for a price.
Short answer
Start from the conditions, not the catalogue: write down the species and life stages, the production system, the measured water source, the site climate, the energy supply, the feed plan, the biosecurity level, the staff you can hire and the market specification. Every equipment choice — tanks, pumps, filtration, aeration, oxygen, monitoring, feeding and backup power — follows from those facts.
Equipment sized for generic conditions is the most common avoidable mismatch. When the brief states your real peak biomass, water analysis, temperature range and power reliability, competing proposals can be compared on the same basis.
Nothing on this page promises growth, survival, yield or profit. It explains which inputs to collect and which trade-offs to decide. Design values must be confirmed by a qualified aquaculture engineer or biologist for your site.
How to plan procurement around your conditions: 6 steps
1. Define the species, life stages and market product
Name the exact species (not just 'fish'), which stages you will run (hatchery, nursery, grow-out) and the product you will sell: size, form (live, whole, fillet) and quality requirements of your buyers.
2. Measure the site and water
Collect a laboratory water analysis of the actual source, available flow through the year, temperature range, land and access, flood and storm exposure, and discharge rules for the location.
3. Choose the production system that fits those conditions
Pond, cage, flow-through, partial reuse or RAS. The right system is the one your water, climate, energy and staff can actually support at your target scale.
4. Convert the plan into design loads
Peak standing biomass, peak daily feed, oxygen demand, water exchange or recirculation flow, heating or cooling duty and power demand. These numbers size the equipment.
5. Decide operating constraints and risk tolerance
Grid reliability and backup, biosecurity level, automation versus labour, local service and spare parts, and how much failure tolerance (redundancy) you need.
6. Write the brief and compare proposals against it
Put the conditions and design loads in one RFQ so every supplier quotes the same duty, then compare scope, lifecycle cost and risk — not only price.
Takeaway: each step produces an input the next one needs.
What each condition decides
Definitions first: a design condition is a fact about your project that equipment has to cope with on its worst day. The table shows which equipment decisions depend on each one.
| Condition | What to collect | Equipment and infrastructure it shapes | Common gap |
|---|---|---|---|
| Species and life stage | Exact species, stages, target harvest size, stocking plan | Tank or cage type, density limits, temperature band, oxygen targets, grading and harvest equipment | Generic 'tilapia/shrimp' brief with no harvest size or schedule |
| Production system | Pond, cage, flow-through, partial reuse or RAS; level of intensification | Almost the whole equipment list: treatment train, pumping, aeration, building, controls | System chosen before checking water, energy and staff |
| Water source and quality | Lab analysis (salinity, pH, alkalinity, hardness, iron, ammonia, pathogens), seasonal flow | Intake, pre-treatment, filtration, disinfection, make-up water volume | No analysis — treatment sized on assumptions |
| Climate and temperature | Monthly air and water temperature range, storms, floods | Heating or chilling, insulation or building, aeration duty, moorings and structural design | Average temperature used instead of the extremes |
| Energy supply | Tariff, grid reliability, outage history, fuel availability | Pump and blower efficiency, backup generators, emergency oxygen, solar options | Backup power left out of scope |
| Feed | Feed type and pellet sizes, local availability, price, storage conditions | Feeding system, silos and storage, dosing accuracy, conveying | Feeding system sized on annual tonnage, not peak day |
| Biosecurity | Health status of stock source, disease risks, zoning needs | Disinfection, quarantine, footbaths, separate water loops, layout | Biosecurity added after the layout is fixed |
| Staffing and skills | People you can hire and keep, shifts, training needs | Automation level, alarms and remote monitoring, maintainability | Highly automated system with no trained operators |
| Target market | Buyer specifications, certification needs, delivery schedule | Harvest, grading, processing and cold-chain equipment, production schedule | Production plan not matched to how buyers purchase |
Takeaway: if a condition is unknown, the equipment sized for it is a guess.
Conditions file: data to collect
Answer these before contacting anyone. Where you do not know the answer, mark it as unknown — that is useful information for the reviewer.
Species and market
- Which species and life stages, and from which stock source?
- Target harvest size, product form and buyer specifications?
- Planned annual output and harvest schedule?
Site, water and climate
- Water source type, laboratory analysis and seasonal flow?
- Monthly temperature range and extreme events?
- Land, access, flood exposure and discharge rules?
Operations
- Energy tariff, grid reliability and backup options?
- Feed type, supplier availability and storage conditions?
- Staff available, skills and training needs?
Quick checks before choosing a production system
1. Do you have a laboratory analysis and seasonal flow data for the water source?
✓ Use it to set treatment and exchange requirements.
✗ Get it first — the treatment train cannot be specified without it.
2. Can the site supply enough water year-round for flow-through or pond production?
✓ Lower-intensity systems may be feasible; compare them on lifecycle cost.
✗ Consider reuse or RAS, which need much less make-up water but more energy, skills and backup.
3. Is the grid reliable, or is backup power and emergency oxygen budgeted?
✓ Intensive systems become an option.
✗ Budget backup first; intensive systems lose stock fast when power fails.
4. Can you hire and keep operators trained for the system you are considering?
✓ Plan training and handover in the scope.
✗ Choose a simpler system or include long-term operating support.
Takeaway: the system choice follows the site, not the other way round.
Trade-offs to decide before you buy
These are common decision points. There is no universally right answer; the right one depends on your conditions and must be confirmed for your site.
| Decision | Option leaning one way | Option leaning the other way | What decides it |
|---|---|---|---|
| Intensity | Lower density, more land and water, less equipment | Higher density, less land and water, more equipment, energy and skills | Water availability, land cost, energy reliability, staff |
| Aeration vs pure oxygen | Aeration: lower running complexity, limited at high loads | Oxygen injection: supports higher loads, needs supply and monitoring | Peak oxygen demand, oxygen supply chain, budget |
| Automation | Manual: lower capital cost, more labour | Automated: more consistent, needs trained staff and service | Labour availability, skills, local service |
| Building or open site | Open site: lower capital cost, more exposed to climate | Building: temperature control and biosecurity, higher capital cost | Climate extremes, species temperature band, biosecurity |
| Local vs imported equipment | Local: faster service, spare parts nearby | Imported: possibly wider choice, longer lead times and spares logistics | Service network, import duties, lead time |
Takeaway: name the condition first, then the equipment response.
Make your feed assumption explicit
Feed is usually one of the largest running costs, and the feed plan drives the feeding system, storage and oxygen demand. Enter your own numbers; the results are simple arithmetic, not a forecast.
- Feed cost per kg harvested
- $1.76
- Total cost per kg harvested
- $3.26
- Annual feed spend
- $1,760,000 per year
- Effect of improving FCR by 0.1
- $110,000 per year
Formula: feed cost per kg = feed price × FCR. Total cost per kg = feed cost per kg + all other costs per kg. Annual feed spend = feed cost per kg × annual harvest in kg.
Send these figures with a project briefIllustrative example (hypothetical numbers)
Assume a planned 500 tonnes a year, feed at USD 1.20 per kg and an assumed FCR of 1.6. Feed cost per kg harvested = 1.20 × 1.6 = USD 1.92; annual feed = 1.92 × 500,000 kg = USD 960,000. If the FCR assumption were 1.8 instead, annual feed would be 1.20 × 1.8 × 500,000 = USD 1,080,000. These are assumptions for illustration only: the actual FCR depends on species, feed, temperature, oxygen and management and must come from your records or a qualified specialist.
Takeaway: feed is usually the largest running cost — make the assumption explicit.
Free tools to turn conditions into design loads
Use these calculators to put numbers on your conditions before writing the brief. They give planning estimates only.
- Stocking density calculator
Check biomass per volume against your species and system.
- Oxygen requirement calculator
Estimate oxygen demand from daily feed — the basis for aeration or oxygen sizing.
- Water exchange calculator
Estimate daily water needs to compare with what your source can supply.
- Power requirement calculator
Rough connected load to check against grid capacity and backup.
- Feed budget calculator
Plan feed volume and peak-day load for storage and feeding systems.
- RAS system design scope (13 sections)
- RAS cost calculator (CAPEX/OPEX ranges)
- Project readiness check
- RFQ specification checklist (companion guide)
How to read this guide
- This guide explains decision factors and arithmetic. It does not predict growth, survival, yield, FCR or profit, and no outcome is guaranteed.
- Technical and environmental items — water treatment, discharge, structural design, electrical safety and permits — need review by qualified local engineers and the relevant authorities.
- FishMatch Group is supplier-neutral. Buyers can use the tools free; our team reviews and organises the project brief and then contacts suitable suppliers on the buyer's behalf. Buyers are not connected directly with manufacturers.
Financing and common avoidable mistakes
- Lenders and investors typically ask how the design matches the site: water data, energy supply, staffing and market. A clear conditions file supports that discussion; it does not guarantee approval.
- Mistake: copying a design from another country or species without checking water, temperature and energy at your site.
- Mistake: sizing on annual tonnage instead of peak biomass and peak feed day.
- Mistake: leaving backup power, emergency oxygen and spares out of the scope to lower the headline price.
- Mistake: choosing a level of automation that local staff and service cannot support.
Takeaway: lenders read the same conditions file as engineers.
Checklist: is your project brief based on real conditions?
- Exact species, life stages, harvest size and annual output stated
- Laboratory water analysis attached, with seasonal flow
- Monthly temperature range and extremes stated
- Production system chosen and the reason recorded
- Peak standing biomass and peak daily feed stated
- Energy tariff, grid reliability and backup requirement stated
- Feed type, pellet sizes and storage conditions stated
- Biosecurity level and zoning requirements stated
- Staffing, automation level and training needs stated
- Market specification and harvest schedule stated
- Items needing qualified local review marked (treatment, discharge, structures, electrical, permits)
Takeaway: a brief that answers these points gets comparable proposals.
Frequently asked questions
Turn your conditions into a project brief
Use the free calculators to put numbers on your site and species, then send a project brief. For projects of at least USD 250,000, our team reviews it, contacts suitable suppliers for you and organises their responses. Smaller projects get planning guidance and tools.
Sources and further reading
- FAO — The State of World Fisheries and Aquaculture 2024
- WOAH — Aquatic Animal Health Code (biosecurity standards)
- Southern Regional Aquaculture Center — technical fact sheets
- Timmons & Ebeling — Recirculating Aquaculture (oxygen and biofilter design rules used by our calculators)
Last reviewed: October 2026. Examples use stated hypothetical inputs; no supplier prices, performance benchmarks or outcomes are claimed.