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JLH Consulting, Inc. approaches land-based recirculating aquaculture system (RAS) design from a perspective formed long before it became a consulting firm. John Holder, owner and president, spent more than 25 years as a fish farmer before establishing the company in 1999. That farming background, shared by his son, John P. Holder, guides its services, which span feasibility studies, production planning, hatchery and facility design, construction support and commissioning.
“We’re not just designers. We’ve walked the walk, and everything we do is designed for the fish plus the people running it,” says Holder.
Today, the family business combines recognized expertise in biology and design with a client-centered philosophy in which relationships are intended to last a lifetime. From small family farms to commercial-scale operations, JLH’s mission is to deliver sustainable, efficient and modular solutions. It has completed more than 180 projects across 24 countries on six continents, working with 19 species ranging from salmon to shrimp and shellfish. The project portfolio spans freshwater, marine and brackish systems across temperatures from about 10°C to 30°C.
Engineering Efficiency into Every Farm Using RASWay
JLH begins each engagement by assessing whether the project is viable before a client commits significant capital. Water availability, power, labor and site conditions are reviewed early. Rather than favoring one technology, JLH works with clients to match the system to their land and building costs, species requirements, production goals and operator skill.
Based on the project’s specifications, it develops production plans and equipment requirements, ranging from circular tanks and raceways to partial-reuse and full recirculating systems. Its deliverables include 3D concept reviews, 2D layouts and process flow diagrams. The company also designs pumping, biofiltration, oxygenation, controls and alarms. Its RAS designs can also be paired with aquaponics through its associate, Rational Aquaculture.
JLH’s patented RASWay technology powers this approach. In operation since 2016, it uses circular-motion virtual tanks within a raceway to support solids removal, oxygen distribution and uniform water quality while using the full water volume. Six to eight raceway units can operate from one pumping system.
Across multiple species, RASWay has demonstrated lower power use, with reduced capital and operating costs. Earlier versions of the technology used about 15 percent more land. After further study, JLH increased the system depth, bringing the footprint closer to that of conventional alternatives, depending on the species.
Practical Systems for People and Production
JLH has designed farms ranging from 10 to 3,000 metric tons of annual live-weight production, with particular experience in smaller farms where clients can begin at a manageable scale.
Modularity is central to its work. Clients can add another module when production needs increase rather than committing immediately to a large farm. This makes expansion more manageable while supporting the company’s view that no project is too small. Its family-business model also keeps overhead low, helping JLH remain competitive on projects.
JLH’s farmers’ perspective also shapes whether a facility is practical to work in. Its systems are designed around fish health and the people who operate the farm, recognizing that even the best system will fall short if it is difficult to run or poorly matched to the team’s capabilities. Holder’s guiding principle is equally practical, keeping systems simple and efficient.
Experience That Carries Forward
With 53 years of aquaculture experience and principals who have worked on farms worldwide, JLH is continuing to apply its knowledge to new designs and existing-system improvements, recommending reliable equipment that clients remain free to purchase from suppliers.
Preserving its hands-on knowledge is central to JLH’s plans as it expands its team. The need for dependable protein sources also shapes its view of aquaculture’s future. As wild fish stocks decline and ocean conditions change, land-based production offers greater environmental control and closer management of fish welfare. JLH remains focused on creating systems that clients can operate, expand and improve over time.
“We’re not just designers. We’ve walked the walk, and everything we do is designed for the fish plus the people running it,” says Holder.
Today, the family business combines recognized expertise in biology and design with a client-centered philosophy in which relationships are intended to last a lifetime. From small family farms to commercial-scale operations, JLH’s mission is to deliver sustainable, efficient and modular solutions. It has completed more than 180 projects across 24 countries on six continents, working with 19 species ranging from salmon to shrimp and shellfish. The project portfolio spans freshwater, marine and brackish systems across temperatures from about 10°C to 30°C.
Engineering Efficiency into Every Farm Using RASWay
JLH begins each engagement by assessing whether the project is viable before a client commits significant capital. Water availability, power, labor and site conditions are reviewed early. Rather than favoring one technology, JLH works with clients to match the system to their land and building costs, species requirements, production goals and operator skill.
Based on the project’s specifications, it develops production plans and equipment requirements, ranging from circular tanks and raceways to partial-reuse and full recirculating systems. Its deliverables include 3D concept reviews, 2D layouts and process flow diagrams. The company also designs pumping, biofiltration, oxygenation, controls and alarms. Its RAS designs can also be paired with aquaponics through its associate, Rational Aquaculture.JLH’s patented RASWay technology powers this approach. In operation since 2016, it uses circular-motion virtual tanks within a raceway to support solids removal, oxygen distribution and uniform water quality while using the full water volume. Six to eight raceway units can operate from one pumping system.
Across multiple species, RASWay has demonstrated lower power use, with reduced capital and operating costs. Earlier versions of the technology used about 15 percent more land. After further study, JLH increased the system depth, bringing the footprint closer to that of conventional alternatives, depending on the species.
Practical Systems for People and Production
JLH has designed farms ranging from 10 to 3,000 metric tons of annual live-weight production, with particular experience in smaller farms where clients can begin at a manageable scale.
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We’re not just designers. We’ve walked the walk, and everything we do is designed for the fish plus the people running it.
Modularity is central to its work. Clients can add another module when production needs increase rather than committing immediately to a large farm. This makes expansion more manageable while supporting the company’s view that no project is too small. Its family-business model also keeps overhead low, helping JLH remain competitive on projects.
JLH’s farmers’ perspective also shapes whether a facility is practical to work in. Its systems are designed around fish health and the people who operate the farm, recognizing that even the best system will fall short if it is difficult to run or poorly matched to the team’s capabilities. Holder’s guiding principle is equally practical, keeping systems simple and efficient.
Experience That Carries Forward
With 53 years of aquaculture experience and principals who have worked on farms worldwide, JLH is continuing to apply its knowledge to new designs and existing-system improvements, recommending reliable equipment that clients remain free to purchase from suppliers.
Preserving its hands-on knowledge is central to JLH’s plans as it expands its team. The need for dependable protein sources also shapes its view of aquaculture’s future. As wild fish stocks decline and ocean conditions change, land-based production offers greater environmental control and closer management of fish welfare. JLH remains focused on creating systems that clients can operate, expand and improve over time.
Engineering RAS around Site Fit and Farm Use
Recirculating aquaculture systems can look convincing on drawings while carrying expensive weaknesses into construction. A treatment train may be technically sound yet poorly matched to the site, the species, the production plan or the people expected to run it. Power availability, water conditions, land cost and labor capacity can change the economics before concrete is poured. Good engineering begins by testing those limits early rather than fitting a preferred configuration to a location that cannot support it.
That early work needs to connect production ambition with what the farm can actually sustain. Water supply and power costs affect system choices, while building cost and operator skill can influence whether round tanks or raceways make more sense. Expansion also belongs in the same discussion. A farm designed only for its opening production target may face expensive rework when capacity grows. Modular planning can keep additional production from forcing changes to the core water-handling design, but only if expansion is considered before equipment and piping are fixed.
Hydraulics deserve the same level of scrutiny. RAS performance depends on how water moves through the facility and how treatment steps interact under real production loads. Pumps, oxygenation, solids removal and biofiltration should function as one engineered process rather than a collection of individually capable components. Unnecessary pumping stages can raise energy use and maintenance demands for years. Buyers should look closely at process flow, head requirements, access for service and the relationship between treatment equipment and production areas.
“JLH Consulting, Inc.'s design process also keeps farm staff in view, favoring simple system layouts and modular expansion over complexity that can burden day-to-day use.”
Documentation is part of that engineering discipline. Process flow diagrams, clear equipment layouts, flow requirements and electrical estimates give owners a firmer basis for budgeting and construction coordination. Design teams should also make explicit where outside engineering is required so responsibilities do not blur during implementation. A system that depends on unresolved building services or late equipment decisions can accumulate cost before commissioning begins. The strongest design packages reduce those handoffs by defining enough detail for local engineers and contractors to work from the same assumptions.
Farm staff ultimately inherit every decision made during design. Feeding, grading, cleaning and routine maintenance place different demands on a facility than a computer model does. Controls and alarms help, but they cannot rescue layouts that are difficult to understand or awkward to service. Engineering should account for how people reach equipment, monitor system behavior, respond to water-quality changes and carry out repetitive work without adding unnecessary complexity. Practicality here is not cosmetic. It affects whether the system can be managed consistently after the design team leaves.
JLH Consulting, Inc. merits consideration as a premier choice for organizations that need RAS engineering grounded in farm use rather than equipment selection alone. Its work covers feasibility, facility design, production planning and construction support, while its service scope also includes system concept development and commissioning support. Its patented MXCELL RASWAY uses controlled circular flow within raceways and is designed around ultra-low-head pumping. Its design process also keeps farm staff in view, favoring simple system layouts and modular expansion over complexity that can burden day-to-day use. JLH also designs conventional tank or raceway configurations, allowing technology choice to follow species, site economics, operator skill and expansion plans.
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Recirculating Aquaculture System Engineering Solutions in Canada Info
Q1
What Do Recirculating Aquaculture Systems Engineering Solutions in Canada Cover?
Recirculating Aquaculture Systems Engineering Solutions in Canada cover the planning and design work needed to create land-based aquaculture facilities that repeatedly treat and reuse process water. The scope can include feasibility assessment, production planning, tank and raceway layouts, pumping, biofiltration, oxygenation, controls, alarms, commissioning and construction support. Effective RAS design brings these elements together around species needs, production targets, site conditions and operating requirements rather than treating each component as a separate purchase.
Q2
How Does JLH Consulting, Inc. Approach RAS Engineering?
JLH Consulting, Inc. applies Recirculating Aquaculture Systems Engineering Solutions in Canada through a farming-informed design process. Owner and president John Holder spent more than 25 years as a fish farmer before establishing the firm in 1999. The company has completed more than 180 projects in 24 countries across six continents and has worked with 19 species. Its assignments extend from early feasibility evaluation and output planning to facility engineering, build-phase assistance and startup commissioning, creating continuity from initial assessment through operation.
Q3
Why Does Feasibility Matter Before a Land-Based Aquaculture Project Moves Forward?
For Recirculating Aquaculture Systems Engineering Solutions in Canada, feasibility work helps determine whether a concept can function economically and operationally before major capital is committed. Early reviews should consider water supply, power availability, labor, site conditions, species requirements and intended production. These factors influence system architecture, equipment choices and facility layout. A disciplined feasibility stage can expose constraints early, clarify realistic production planning and reduce the risk of designing a technically capable system that is difficult or costly to operate.
Q4
What Design Factors Influence RAS Efficiency and Reliability?
Recirculating Aquaculture Systems Engineering Solutions in Canada depend on coordinated decisions about hydraulics, solids removal, oxygen delivery, filtration, water quality, controls and alarms. Energy demand is strongly affected by how water is moved through the facility, while equipment arrangement influences maintenance and operator workload. Good RAS design therefore considers the farm as an integrated operating system. Simplicity, dependable water movement and practical access to equipment can support stable performance while limiting avoidable complexity.
Q5
How Can Modular RAS Design Support Long-Term Growth?
Modularity gives Recirculating Aquaculture Systems Engineering Solutions in Canada a way to align facility growth with production needs. Instead of building full future capacity at the outset, a project can be structured so additional production modules are added as demand or operational confidence increases. This approach can make capital planning more manageable and help operators expand without redesigning the entire facility. Modular planning also encourages repeatable layouts, clearer equipment requirements and a more controlled path from initial production to larger-scale operation.
Q6
What Should Buyers Evaluate When Comparing Recirculating Aquaculture Systems Engineering Solutions in Canada?
When comparing Recirculating Aquaculture Systems Engineering Solutions in Canada, buyers should look beyond individual equipment specifications. Important considerations include whether the engineering team assesses feasibility, integrates the full water-treatment process, designs around species and production goals, plans for operator usability and provides support through commissioning. Buyers should also examine how the proposed RAS design addresses energy use, maintenance, expansion and system control. The strongest fit is a solution that balances biological performance, engineering practicality and long-term operating demands.
Company
JLH Consulting, Inc.
Management
John Holder, Owner and President
Description
JLH Consulting, Inc. designs practical land-based aquaculture systems informed by more than five decades of hands-on farming experience. Its services span feasibility, production planning, facility design, construction support and commissioning, with modular solutions built for efficient, sustainable operation.
