Aquaculture glossary

Grow-Out System in aquaculture procurement

Also called Aquaculture grow-out system, Grow-out, Growout system, Fish grow-out system, Shrimp grow-out system, On-growing stage or Grow-out phase.

Short answer

What is grow-out system?

The grow-out system is where juveniles are raised to market size — in ponds, cages, tanks, raceways or a recirculating system. It represents most of the biomass, most of the feed and most of the equipment cost.

Why it matters:: Grow-out choice determines oxygen demand, water use, energy consumption and harvest logistics.
Affects:: It affects production unit type and count, aeration or oxygenation, pumping, feeding, monitoring and harvest handling.

Why it matters

Grow-out choice determines oxygen demand, water use, energy consumption and harvest logistics. It is the single decision that shapes the whole RFQ.

When it affects procurement

It affects production unit type and count, aeration or oxygenation, pumping, feeding, monitoring and harvest handling.

Example

The same species and tonnage in cages, ponds or RAS produce three different equipment lists with CAPEX per tonne that can differ by a factor of three or more.

Is FishMatch right for your project?

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 grow-out system and related aquaculture procurement decisions. 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

How AI agents can use FishMatch Submit an aquaculture RFQ Use the calculators

FAQ

Yes — hybrid models such as land-based nursery plus cage grow-out are common. The interfaces between stages then need to be specified explicitly.

Maximum standing biomass the system can hold at target water quality, combined with cycle length and survival.

It depends on species, stocking size and water temperature: vannamei shrimp typically run roughly 90–120 days per cycle from post-larvae, while finfish grow-out to market size commonly runs from several months to more than two years. Cycle length — not annual tonnage — determines how much standing biomass the equipment must carry.

A nursery raises post-larvae or fry to a robust juvenile size in a small, tightly controlled and biosecure volume. Grow-out takes those juveniles to market size and holds most of the biomass, so it drives most of the aeration, pumping, feeding and harvest equipment.

No. Grow-out describes the production stage from juvenile to market size; RAS describes one water-treatment and production method. Grow-out can take place in a recirculating aquaculture system, pond, cage, tank or raceway.

The scope depends on the production method, but commonly includes production units, water movement, aeration or oxygenation, feeding, monitoring, grading and harvest handling. A RAS grow-out system also needs mechanical filtration, biological treatment and degassing.

Where this applies on FishMatch

Grow-out system FAQ System advisor Recirculating aquaculture system (RAS) definition Nursery stage definition 100 t/year RAS grow-out project Biomass calculator Shrimp survival and profit calculator Example RFQ library

Turn the definition into a request

Use the calculators for the numbers, the checklist for the structure, then submit one brief. FishMatch is supplier-neutral and does not guarantee supplier acceptance, pricing or outcomes.

Submit your project brief RFQ checklist Example RFQs

Related terms

Buyer answers

Grow-out system: what buyers ask before requesting quotes

What is a grow-out system in aquaculture?

The grow-out system is the production stage that takes juveniles from nursery size to market size. It is usually the largest part of a farm by volume, CAPEX and running cost, so its design — ponds, cages, flow-through or RAS — drives most of the project budget.

How do I choose a grow-out system?

Work from species, target tonnage, water availability, climate, land and power. RAS uses little water and land but more energy and capital; ponds and cages cost less to build but depend on site conditions. Compare options on total cost per kg produced, not purchase price.

What do suppliers need to quote a grow-out system?

Species, annual output and harvest size, stocking density target, site and water data, production method, scope (equipment only or turnkey) and delivery location. Preliminary figures are fine; FishMatch helps close gaps before suppliers are invited.

Request quotes — details pre-filled