The Evolution Aqua Nexus Koi Pond Filter is widely regarded as one of the most reliable and efficient filtration systems available for koi ponds. Designed specifically for the demands of koi keeping, it combines powerful mechanical filtration with highly effective biological processing in one compact, easy-to-maintain unit. For pond owners who value water clarity, fish health, and long-term stability, the Nexus filter has become a trusted solution worldwide.
Designed for the Unique Needs of Koi Ponds
Koi produce a significant amount of waste and require exceptionally clean, oxygen-rich water to thrive. The Nexus filter addresses this challenge using Evolution Aqua’s proven moving bed filtration technology. Unlike traditional multi-chamber filters that rely on static media, the Nexus uses constantly moving filter media to maximise efficiency and reduce maintenance.
This dynamic system allows beneficial bacteria to colonise the media effectively, ensuring ammonia and nitrite are broken down quickly and safely.
How the Nexus Filter Works
The Evolution Aqua Nexus operates in two distinct stages:
Mechanical Filtration
Water enters the outer chamber where solid waste, uneaten food, and debris are captured using static K1 Micro media. This prevents particles from reaching the biological stage.
Biological Filtration
Pre-filtered water flows into the inner chamber, where K1 moving bed media is continuously circulated by an air pump. This movement keeps the media clean and oxygenated, creating an ideal environment for beneficial bacteria.
The result is clear water and a stable biological system that supports koi health.
Key Benefits of the Nexus System
One of the main advantages of the Nexus filter is its ease of maintenance. Cleaning is quick and efficient thanks to integrated valves and air-assisted agitation, allowing waste to be flushed without dismantling the filter.
Other benefits include:
- Excellent water clarity
- High biological capacity
- Energy-efficient operation
- Simple, user-friendly design
- Durable construction for outdoor use
These features make the Nexus suitable for both experienced koi keepers and dedicated beginners.
Flexible Installation Options
The Evolution Aqua Nexus can be installed in either pump-fed or gravity-fed configurations. Pump-fed systems are straightforward and ideal for smaller ponds, while gravity-fed setups are often preferred for larger ponds and bottom drain installations.
Multiple Nexus sizes are available, allowing pond owners to choose the model best suited to their pond volume, fish load, and feeding levels.
Long-Term Reliability and Performance
Built from high-quality, weather-resistant materials, the Nexus filter is designed for year-round outdoor use. Its moving bed technology prevents media clogging, ensuring consistent performance even during periods of heavy feeding or warm weather.
With regular cleaning of the mechanical stage and proper care of the air system, the Nexus can deliver reliable filtration for many years.
Conclusion
The Evolution Aqua Nexus Koi Pond Filter is a powerful and dependable filtration system designed to meet the high demands of koi ponds. Its innovative moving bed technology, efficient waste removal, and simple maintenance make it a favourite among serious koi keepers. For those seeking clear water, healthier fish, and a low-maintenance solution, the Nexus filter stands out as a proven and effective choice.
