Hydor USA Koralia Nano Evolution Aquarium Power Head
The Koralia Nano remains super compact and efficient. The magnet suction support and sphere joint have been strengthend and modified allowing better flow direction. Both models can be safely run on a timer. Just choose which model is best suited for your aquarium and watch your creatures benefit from the flow of this super efficient little powerhead.
240 GPH: Freshwater, 16-18 gallons. Marine 10-15 gallons
425 GPH: Freshwater, 28-50 gallons. Marine 15-30 gallons