Start with a Brief That Suppliers Can Price
A request for “a large aquarium for the lobby” leaves several expensive decisions unresolved.
Specify whether the display will contain freshwater fish, marine fish only, or corals. Identify the intended species, approximate numbers, and adult sizes. Include photographs of the proposed location, viewing directions, nearby seating, and the route from the delivery entrance.
Also name the person or contractor responsible for routine care. A system maintained by trained staff every day can be arranged differently from one that depends on scheduled contractor visits.
For a Ruibit inquiry, provide these details before requesting a final equipment package. Ask the quotation to distinguish the tank, support structure, filtration, lighting, installation, and commissioning so that missing work is visible.
Size the Display for Adult Livestock and Site Access
Length, width, and water depth serve different purposes. Swimming room, turning space, territories, and access to shelter depend on the species. OATA advises checking aquarium suitability against both the species and number of fish, including their fully grown size. The Ornamental Aquatic Trade Association
A tall, narrow display may suit an architectural opening while offering limited usable space for the selected fish. Confirm the livestock plan before freezing the dimensions.
Distinguish three volumes:
- Gross display volume: the geometric capacity of the tank.
- Working display volume: water present at the operating level after displacement by substrate and decoration.
- Total operating water volume: working display water plus water in the sump and connected equipment.
For example, internal dimensions of 2.0 × 0.7 m with a 0.7 m water depth give 980 L before displacement . This derived figure does not establish a safe fish count or filtration specification.
The water alone would weigh approximately 980 kg in a freshwater system. Glass, framing, decoration, equipment, and sump water add to the installed load. Have the complete support arrangement and building location assessed appropriately; dividing total weight by floor area does not establish that a floor is suitable.
Check the delivery route at the same time. Include crate dimensions, doorway clearances, corners, elevators, and lifting access.
Ask the Supplier to Explain the Filtration Duty
A filter described as “suitable for 2,000 liters” needs supporting conditions. What livestock and feeding load does that rating assume?
UF/IFAS identifies fish load, feeding rates, source water, and biofilter capacity as central considerations in recirculating-system design. Two displays with equal water volume can therefore require different treatment capacity. ask.ifas.ufl.edu
Ask the supplier to explain how each filtration stage contributes:
| System function | What the buyer should verify |
|---|---|
| Solids removal | How waste reaches the filter and how captured material is removed |
| Biological filtration | The feeding-load basis, media arrangement, and maturation plan |
| Circulation and gas exchange | Delivered flow, distribution, and oxygen provision |
| Temperature control | Required water temperature and expected room conditions |
| Optional treatment | The specific purpose of UV, skimming, or chemical media |
A reef system may need dedicated circulation and coral lighting, while a marine fish-only display may have different requirements. Equipment should follow the livestock plan.
Request the intended pump operating point: flow at the installed head, rather than maximum flow alone. Pipework, elevation, fittings, and equipment resistance affect delivered flow. In a reef aquarium, return-pump flow through the sump and internal circulation are separate design decisions.
Do not accept additional media or a larger pump as a substitute for explaining the water path.
Plan Maintenance Around the Completed Installation
Review the service layout with the cabinet, wall finishes, and surrounding furniture in place.
Can the filter basket be lifted out? Can the skimmer cup clear the cabinet roof? Can a technician disconnect the pump and remove it through the opening? Where will dirty water drain?
Ask for removal clearances based on the selected equipment manuals. A component fitting inside the cabinet does not prove that it can be serviced there.
Commercial locations also need practical water-change arrangements. Identify the preparation area, freshwater supply, drainage route, hose storage, and space for wet tools. For marine systems, include saltwater mixing and freshwater top-off storage where applicable.
Noise should be assessed at occupied locations. Request an acceptance procedure that considers pump operation, overflow noise, cabinet vibration, and other equipment under normal operating conditions. A pump’s standalone sound specification cannot describe the whole installation.
Maintenance frequency will depend on the livestock and system conditions. OATA likewise notes that water-change requirements vary with aquarium size, stocking, and other factors. The Ornamental Aquatic Trade Association
Include Failure and Restart Checks in Commissioning
Agree on what must be demonstrated before handover.
For an overflow-fed sump, verify that available space accommodates drain-back when the return pump stops. Check restart behavior, operating water levels, leaks, and equipment settings.
Document how staff should respond to a stopped pump, low water level, temperature alarm, or power interruption. Backup aeration and monitoring should be selected according to livestock needs and the time required for someone to respond.
A filled tank with running pumps is not necessarily ready for stocking. UF/IFAS explains that biofilter cycling depends on loading, feeding, temperature, oxygen, pH, and alkalinity. Establish readiness through appropriate testing and a staged stocking plan rather than promising a universal completion date. ask.ifas.ufl.edu
Compare the Handover Package Alongside the Purchase Price
Request equipment model numbers, manuals, a plumbing diagram, maintenance procedures, warranty boundaries, and replacement-part availability.
Clarify who supplies livestock, prepares water, establishes biological filtration, trains staff, and provides follow-up support. These services can differ considerably between quotations.
For operating costs, ask for stated assumptions: equipment power and hours, consumable quantities, service frequency, and labor scope. Treat estimates as provisional until actual operation can be measured.
Before approving the order, have the supplier walk through the drawing with the person who will maintain the aquarium. Follow one cleaning task, one pump replacement, and one water change from beginning to end. Any step that depends on inaccessible equipment or an unspecified service should be resolved in the purchase scope.
FAQs
What determines the right commercial aquarium size?
Consider adult livestock size, swimming space, compatibility, and site access. Tank volume alone does not establish suitable stocking or filtration capacity.
How should commercial aquarium filtration be selected?
Match filtration to livestock, feeding load, water conditions, and maintenance arrangements. Ask suppliers to explain solids removal, biological capacity, and delivered pump flow.
Is a sump necessary for every commercial aquarium?
No. A sump can provide equipment space and convenient servicing, but suitability depends on the design. Where installed, verify drain-back capacity and restart behavior.
What maintenance access should buyers check?
Confirm clearance for filter baskets, skimmer cups, pumps, and connections. Include drainage, water preparation, and equipment removal with cabinets and surrounding furniture in place.
What should commissioning include?
Check leaks, operating water levels, pump-stop and restart behavior, alarms, and staff procedures. Verify biological readiness through testing before staged stocking.
