Hydor Koralia Magnum 8 3250 GPH Circulation Pump
The KORALIA 3250 (formerly Magnum 8) is a dynamic, fully submersible water pump designed to revitalize hard-to-access dead spots in aquariums. With a flow rate of 3250 gallons per hour, it delivers powerful yet gentle water movement ideal for marine and reef setups.
Equipped with a magnetic base and articulating ball joint, the pump offers a full 360-degree range of motion for flexible positioning. This allows precise targeting of water flow to areas typically unreachable with standard powerheads.
The patented propeller design ensures efficient and delicate circulation, minimizing stress on sensitive marine life. The pump features an electronic start-up system and advanced rotor technology for optimal performance and energy efficiency.
| Specification | Detail |
|---|---|
| Flow Rate | 3250 gph |
| Mounting Type | Magnetic base with suction cup and ball joint |
| Max Glass Thickness | 1/2 inch |
| Power Consumption | Extremely low |
| Operating Range | 360-degree rotation |
FAQ
What is the maximum thickness of glass the pump can be mounted on?
The pump is suitable for aquarium glass up to 1/2 inch thick.
Can the pump be positioned at any angle?
Yes, the articulating ball joint allows a full 360-degree range of motion for flexible positioning.
Is the pump suitable for marine and reef aquariums?
Yes, the patented propeller design provides powerful yet delicate water flow, making it ideal for marine and reef environments.

Julian King –
This pump significantly improved water circulation in my 120-gallon reef tank. The flow is strong but gentle, and the 360-degree positioning makes it easy to direct water to specific areas. It’s quiet and uses very little power compared to other models I’ve tried.
Ruth Robertson –
Great performance for a marine setup. The magnetic base stays securely in place and the flow is consistent. I noticed better coral health after installing it. Only minor issue is the suction cup can be tricky to attach on very thick glass.
Luke Gray –
Highly effective at moving water through dead zones. The electronic start-up is smooth and the pump runs quietly. I use it in a mixed reef and fish tank and it’s been reliable for over six months.