RAS sourcing: supplier capability profiles, equipment specs and procurement guides
Everything a recirculating aquaculture buyer needs before requesting prices — what to specify for each subsystem, how to compare manufacturers on capability rather than marketing, and the reviewed procurement sequence FishMatch runs from brief to introduction.
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.
Equipment specifications
RAS equipment specs to define before you ask for a price
Planning-grade ranges for each RAS subsystem, plus the exact figures to demand from every manufacturer so quotations stay comparable.
Circulation pumping
Moves the full system volume through treatment at the design turnover rate.
Typical turnover
1–3 system volumes per hour
Head range
3–12 m depending on loop layout
Efficiency target
≥ 70% at duty point
Redundancy
N+1 on every critical loop
Ask every supplier
Pump curve with the duty point marked, not just rated flow
kWh per m³ circulated at design head
Materials in contact with saline or brackish water
Mechanical filtration (drum filters)
Removes solids before biofiltration so ammonia conversion stays stable.
Screen size
40–90 µm typical for grow-out
Hydraulic capacity
Sized at peak flow, not average
Backwash water
0.2–1.0% of daily throughput
Solids capture
50–80% of TSS at design load
Ask every supplier
Capacity curve at your solids load, not clean-water rating
Backwash volume and pressure requirement
Spare screen panel lead time
Biofiltration
Converts ammonia to nitrate; the single most schedule-critical subsystem.
Media surface area
500–1,000 m²/m³ typical
Design basis
g TAN removed per m² per day at design temperature
Fill fraction
40–60% of reactor volume
Maturation
3–8 weeks before full feed load
Ask every supplier
TAN removal rate used for sizing and the temperature it assumes
Media type, fill fraction and reactor volume separately stated
Start-up and maturation support scope
Oxygenation & degassing
Delivers dissolved oxygen at feed peaks and strips CO₂ and nitrogen.
Oxygen demand
≈ 0.4–0.6 kg O₂ per kg feed
Transfer efficiency
70–95% for oxygen cones / LHO
CO₂ target
< 15 mg/L in grow-out
Backup
Emergency LOX with independent supply
Ask every supplier
Guaranteed transfer efficiency at your inlet pressure
Degassing capacity at maximum feed load
Emergency oxygen autonomy in hours
UV & disinfection
Controls pathogen load in recirculated and make-up water.
UV dose
30–100 mJ/cm² depending on target organism
UV transmittance
Design at actual UVT, often 70–85%
Lamp life
9,000–16,000 h
Placement
After mechanical filtration
Ask every supplier
Validated dose at your UVT and flow, with the validation report
Annual lamp and sleeve replacement cost
Monitoring & control
Alarms, logging and interlocks that protect biomass when something fails.
Core probes
DO, temperature, pH, ORP, level, flow
Alarm path
SMS/voice escalation with acknowledgement
Logging
≥ 12 months at 1-minute resolution
Failover
UPS on control cabinet and probes
Ask every supplier
Open data export (CSV/API) or proprietary lock-in
Which alarms trigger automatic actions vs notification only
Feeding systems
Distributes feed accurately; feed accuracy drives FCR and water load.
Dosing accuracy
±3–5% per feeding event
Control
Per-tank schedules with appetite feedback
Integration
Feed logs linked to biomass records
Ask every supplier
Whether feed data exports into your biomass tracking
Calibration procedure and frequency
Make-up water & effluent treatment
Conditions intake water and meets the discharge consent for the site.
New water
typically 3–10% of system volume per day
Intake treatment
Filtration, disinfection, temperature control
Effluent
Solids separation to permit limits
Ask every supplier
Guaranteed effluent parameters against your permit values
Sludge handling volume and disposal assumption
Procurement guide
How RAS procurement runs, step by step
01
Fix the production brief before you request prices
Species, annual tonnage, harvest size, water source, temperature range, site constraints and permit status. Quotes built on different assumptions cannot be compared, no matter how detailed they look.
Species and target tonnes/year
Water source and temperature profile
Site area, power and permit status
02
Size the system independently
Run tank volume, flow, biofilter and oxygen demand yourself so you enter supplier conversations with an independent reference. A supplier design that differs by 30% from your sizing is a question, not necessarily a problem.
Design flow and turnover
Biofilter volume and TAN load
Peak oxygen demand
03
Write one scope of supply for every bidder
State battery limits explicitly: what is inside the supplier's scope, what is civil works, what is local install. Most price gaps between RAS quotes are scope gaps, not equipment gaps.
Battery-limit list
Exclusions list
Commissioning and training scope
04
Normalise the bids
Bring every offer onto the same line items — equipment, install, commissioning, spares, freight, warranty — then compare cost per tonne of annual capacity rather than headline price.
Line-by-line comparison
Cost per tonne of capacity
Lead time and payment terms
05
Test operating cost, not only CAPEX
Energy, oxygen, feed, labour and water make the difference between a viable farm and a stranded asset. Ask for guaranteed kWh per kg produced at the design load.
kWh/kg produced
Cost per kg at target FCR
Payback range
06
Reviewed introduction, then contracting
FishMatch reviews the brief and approaches suitable manufacturers directly. Buyers are introduced to shortlisted suppliers after that review — there is no automatic buyer-to-supplier contact.
Reviewed brief
Shortlist rationale
Introduction and quotation round
Scenario RFQ builder
Build a RAS procurement request from a scenario
Pick the reference project closest to yours. The RFQ builder opens with the system type, species, capacity and budget band already filled in — you adjust the details, attach drawings and submit. FishMatch reviews the brief before any manufacturer is approached.
Selected: FM-RAS-A — Atlantic salmon post-smolt, 600 t/year, Full land-based RAS, 12 grow-out tanks, dual loop. Cost driven by oxygen strategy and redundancy, not tank volume; a second loop is assumed for biosecurity separation.
Scenarios are anonymised planning references, not quotations. Supplier identities are only introduced after FishMatch reviews the brief and validates technical fit.
Free tools
Run the numbers before the sourcing round
Size the system, check the water budget, test feasibility and normalise supplier bids so every RAS quotation lands on the same basis.
Reviewed, anonymised RAS capability profiles — segment, region, certifications, export markets and languages. Identities and contact details are introduced by FishMatch after the brief is reviewed.
Match capability profiles by species, target tonnes per year and system type, and compare equipment specifications, certifications and lead times side by side.
Loading reviewed capability profiles…
RAS sourcing FAQs
What does a RAS sourcing process actually cover?
Defining the production brief, sizing the system independently, writing one scope of supply, collecting comparable quotations, normalising them line-by-line and testing operating cost before contracting. Equipment selection is the last step, not the first.
Why can't I see supplier names on this page?
FishMatch is a managed sourcing service rather than an open marketplace. Buyers compare anonymised capability profiles — segment, region, certifications, export markets — and FishMatch introduces suitable manufacturers after reviewing the brief.
Which RAS equipment specifications matter most in a quotation?
Biofilter TAN removal rate and the temperature it assumes, oxygen transfer efficiency at your inlet pressure, drum filter capacity at your real solids load, and guaranteed kWh per kg produced. These four decide whether a cheap quote stays cheap.
How do I compare two RAS quotations that differ by 40%?
Almost always a scope difference. Rebuild both onto identical line items — equipment, civil, install, commissioning, spares, freight, warranty — using the RAS bid normalizer, then compare cost per tonne of annual capacity.
How long does RAS procurement take?
For a commercial grow-out project, expect 6–12 weeks from a complete brief to comparable quotations, and longer where permits, water rights or financing conditions are still open.
Ready to start a reviewed RAS sourcing round?
Submit your production brief. FishMatch reviews it, shortlists suitable manufacturers and returns comparable quotations — no automatic supplier contact.
RAS quotes rarely cover the same scope. Put each one in this table before you compare prices; FishMatch Group does the same normalisation when it reviews proposals for you.
Item
Why it matters
Ask each supplier for
Red flag
Design basis
Two systems sized for different feed loads are not comparable
Peak daily feed, stocking density, species and temperature used
What is the fastest way to get quotes for RAS Sourcing?
Submit one structured request for RAS Sourcing. FishMatch Group translates it into a technical RFQ, runs a confidential sourcing round with project-matched international suppliers, and returns comparable quotations. No fee is charged to the buyer, and your identity and project details stay private until you choose to proceed.
How it works:
One structured request, human-reviewed before any supplier outreach
Typical turnaround:
Depends on scope and site data; no turnaround is guaranteed
Confidentiality:
Supplier names are never exposed during evaluation
Cost to buyers:
No fee charged to the buyer
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.
Supplier selection criteria
How should a buyer compare aquaculture suppliers?
Compare on evidence, not on presentation: delivered projects at a similar scale and climate, engineering support during design, lead time commitments, spare-part and service availability in your region, certification and testing documentation, payment and warranty terms, and willingness to quote against your specification rather than substituting a catalogue package.
What are the warning signs in a supplier quotation?
Treat these as review triggers: no itemised scope, guaranteed biological or financial performance, no named delivery terms or lead time, no spare-parts or service statement, unclear responsibility for installation and commissioning, and equipment sizing that does not reference your water temperature, oxygen demand or biomass targets.
How does FishMatch handle supplier selection?
FishMatch is an independent sourcing service, not a manufacturer or reseller. The buyer submits one structured project request; our team reviews it first and only then contacts suitable suppliers on the buyer's behalf, presenting their responses through FishMatch in a comparable format. Buyers do not contact suppliers directly and nothing is sent automatically. The final choice stays with the buyer.