Evolution Aqua Nexus+ BioMedia Pond Filters

Evolution Aqua Nexus+ 220 & 320 Pond Filters – Advanced Mechanical & Biological Filtration

The Evolution Aqua Nexus+ range represents the pinnacle of pond filtration innovation. Engineered for superior performance in both mechanical and biological filtration, these industry-leading pond filters are trusted by koi keepers and pond professionals across the globe.

Manufactured in the UK by the award-winning team at Evolution Aqua, the Nexus 220+ and Nexus 320+ models are ideal for koi and ornamental pond setups, helping to maintain crystal-clear, healthy water with minimal maintenance.

💡 Why Choose Nexus+ Filtration?

Combining powerful mechanical filtration with a highly efficient moving bed biological stage, the Nexus+ range offers unmatched water clarity and water quality by eliminating harmful ammonia, nitrite, and waste debris.

🔧 How It Works: Dual-Chambered Filtration Design

1. Mechanical Stage – Eazy Filter with K1 Micro Media
   Unfiltered water enters the inner chamber, creating a vortex that settles large solids. The remaining fine particles are captured by the static K1 Micro media in the integrated Eazy filter.

2. Biological Stage – K+ Advanced Filter Media
   Water then flows into the outer chamber, where K+ Media (agitated by an air pump – not included) supports the growth of beneficial aerobic bacteria that biologically digest ammonia, nitrite, and nitrate, transforming them into non-toxic compounds.

3. Clean Water Outlet
   Water is then directed either back to the pond via pump (pump-fed) or via gravity return to a dry-mounted pump system — adaptable for any pond setup.

📦 Available Nexus+ Filter Sizes:

✅ Nexus 220+ Filter

• Max Pond Volume: 18,000 litres (3,960 gal) for koi ponds

• Recommended Flow Rate: 10,000 L/hr

• Media Supplied: 20L K1 Micro & 50L K+ Media

• Max Media Capacity: 150L

• Filter Volume: 510L

✅ Nexus 320+ Filter

• Max Pond Volume: 34,000 litres (7,500 gal) for koi ponds

• Recommended Flow Rate: 11,000 L/hr

• Max Flow Rate: 13,000 L/hr

• Media Supplied: 20L K1 Micro & 100L K+ Media

• Max Media Capacity: 300L

• Filter Volume: 840L

📏 Detailed technical dimensions for the Nexus 320+ model are available in the image section.

🧼 Easy Cleaning with Eazy Filter System

The Nexus+ is equipped with an Eazy cleaning system, enabling rapid back-flush of waste from the inner chamber with minimal disruption to the biological filter. This simple but powerful design ensures consistent, long-term performance.

🔗Recommended add-on: 

• For advanced pond detox and debris breakdown, consider the Hydrogen Peroxide Six Treatment to help oxygenate water and eliminate organic build-up.

📌 Installation Options:

The Nexus+ system can be configured for both pump-fed and gravity-fed ponds:

• In pump-fed mode, water is pumped to the Nexus first and returns via gravity.

• In gravity-fed setups, water flows into the Nexus by gravity and is returned using a dry pump.

🏆 Why Evolution Aqua Nexus+?

• Trusted brand with nearly 20 years of expertise

• Flexible for various pond sizes and setups

• UK-manufactured quality and support

• Award-winning K+ Filter Media for superior biological filtration

• Long service life, easy maintenance, and cost efficiency

Take your pond filtration to the next level with the Nexus+ 220 or 320, and enjoy unmatched clarity and water quality — the smart choice for koi enthusiasts and professional pond keepers alike.