Maxspect MJ-GF Gyre Flow Pumps

Maxspect MJ-GF Gyre Flow Pumps

Maxspect MJ-GF Gyre Flow Pumps are crossflow circulation pumps from the Jump Series, built to improve water movement in marine and reef aquariums. They help eliminate dead spots and give you customisable flow, which suits reef keepers who want better circulation for their corals and fish.

Key Benefits

• Advanced crossflow technology moves water evenly through the tank and eliminates dead spots.
• Multiple flow modes and adjustable flow direction let you tailor circulation to your aquarium.
• The control system syncs up to 32 pumps in one group.
• Vertical or horizontal mounting gives you flexibility in how you position the pump.
• Clip-on flow director cages improve the flow rate over previous generations and let you aim water at specific areas of the tank.
• A consistent, balanced flow suits all marine life, especially corals with more delicate tissue.

Why Crossflow Technology?

Crossflow pumps are designed to spread water evenly throughout the whole aquarium rather than in one concentrated jet. The pump also creates a gyre flow pattern, where water bounces back from the opposite side of the tank. This mimics natural ocean currents and promotes full circulation, and the steady flow rate gives corals and fish a more stable environment.

New Flow Director Cages

The latest MJ-GF pumps use clip-on flow director cages that significantly improve the flow rate over earlier generations. The cages give you precise control over where the water goes, so you can target particular areas of the aquarium. You can adjust water movement to suit your aquascape, your tank layout and the types of corals you keep.

The Control Centre

The Jump Gyre MJ-GF Series features an advanced controller that is easy to use. Its Group Leader – Group Member function lets MJ-GF308 and MJ-GF316 pumps be linked in the same group. You can connect up to 32 pumps and run them in synchronised or anti-synchronised flow patterns. This suits large or intricate tank setups that need more complex, dynamic water movement.

How to Use

• Mount the pump on the aquarium glass, either vertically or horizontally, within the maximum glass thickness for your model.
• Clip on the flow director cages to aim the flow at the areas of the tank you want to target.
• Use the controller to choose between the available flow modes and adjust the flow to your tank.
• To run several pumps together, assign them to one group with the Group Leader – Group Member function and choose synchronised or anti-synchronised flow.

Suitable For

• Marine and reef aquariums, including tanks with delicate corals.
• Aquariums with dead spots or uneven water flow.
• Large or intricate aquascapes that benefit from several synchronised pumps.

Compatibility

• MJ-GF308 and MJ-GF316 pumps can be linked together in the same group.
• Up to 32 pumps can be connected in one group.

Specifications

MJ-GF308

• Dimensions: 22.2 cm L x 8.3 cm W x 3.8 cm H (8.75" x 3.25" x 1.5")
• Max flow rate: 2113 GPH (approx. 8,000 litres per hour)
• Power consumption: 25 W
• Suggested aquarium size: up to approx. 500 litres (132 gal)
• Max glass thickness: 15 mm (0.59")
• Mounting: vertical or horizontal

MJ-GF316

• Dimensions: 31.1 cm L x 8.9 cm W x 4.4 cm H (12.25" x 3.5" x 1.75")
• Max flow rate: 4227 GPH (approx. 16,000 litres per hour)
• Power consumption: 45 W
• Suggested aquarium size: up to approx. 1,000 litres (264 gal)
• Max glass thickness: 20 mm (0.79")
• Mounting: vertical or horizontal

Available Sizes

Available in the MJ-GF308 and MJ-GF316 models.

What's Included

Each MJ-GF pump kit comes with:

• Gyre Flow pump (MJ-GF308 or MJ-GF316, depending on the model)
• Gyre Flow Pump Controller
• 2 x Flow Director Cages
• Mesh guards
• Mounting screws
• Power supply

Frequently Asked Questions

What is a gyre flow pump?
It is a crossflow pump that creates a gyre flow pattern, where water bounces back from the opposite side of the tank. This mimics natural ocean currents and circulates water through the whole aquarium, helping to eliminate dead spots.

Which model suits my aquarium?
The MJ-GF308 is suggested for aquariums up to 132 gallons (approx. 500 litres), and the MJ-GF316 for aquariums up to 264 gallons (approx. 1,000 litres). Check your tank volume and glass thickness against these figures.

How thick can my aquarium glass be?
The MJ-GF308 mounts on glass up to 15 mm (0.59") thick. The MJ-GF316 mounts on glass up to 20 mm (0.79") thick.

Can I run more than one pump together?
Yes. The Group Leader – Group Member function links MJ-GF308 and MJ-GF316 pumps in one group, up to 32 pumps. They can run in synchronised or anti-synchronised flow patterns.

Can I mount the pump horizontally?
Yes. Both models can be mounted vertically or horizontally.

What do the flow director cages do?
These clip-on cages improve the flow rate over previous generations and let you aim the water at specific areas of your aquarium. This helps you suit the flow to your aquascape and the corals you keep.

When can I expect delivery?

• Gauteng (Jhb/Pta) - 1-3 working days
• Nationwide (Cpt/Dbn+) - 2-5 working days
• Outlying Areas - 3-7 working days

All orders are sent via Economy Road, typically through Fastway or Internet Express Couriers*. Estimated timeframes are not guaranteed. Once the order is collected by the courier, we have no control over third-party logistics and cannot make any time promises.

If you prefer a faster 🚀 shipping option, we also offer The Courier Guy during checkout in the dropdown selection. Please note that this option is not free, and you must choose it to use it. Please pay careful attention to the cutoff times and delivery timeframe for these options during checkout.

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Delivery times to lockers and pickup locations typically range from 2–7 working days, depending on your location.*

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• Bob Box: Collect within 2 days of receiving your collection notification.
• PUDO Lockers: Collect within 36 hours of receiving your collection PIN or SMS notification.

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