Evolution Aqua Nexus 220+

Description

Evolution Aqua have launched the new Nexus220+ filtration system. Building on the tried and tested technology that has been ever present in the world renowned Nexus, the team at Evolution Aqua have gone even further to enhance their number one Koi pond filter. The Nexus220+ filter now comes with a new filter media called K+Media in the moving bed outer chamber for vastly improved biological filtration and faster filter maturation. The new Nexus+ filters are also supplied “auto ready”, with factory fitted fixings already in place, making it even easier to upgrade to the Nexus Automatic System.

How it Works: The Nexus+ filter is an innovative biological and mechanical filter system in one. Water from the pond enters the Nexus+ via the inlet into the inner chamber which works as a vortex allowing larger solids to settle out. The water then passes through Eazy filter, where finer particles are removed at the mechanical stage of filtration, thanks to the static bed of K1 Micro filter media. The mechanically clean water then passes to the outside chamber of the Nexus+ where the new K+Media Moving Bed is located for biological treatment prior to being returned to the pond. At this stage, biological breakdown occurs through different strains of bacteria and filter feeders living on the vast protected surface area of each piece of the K+Media. These bacteria convert Ammonia and Nitrite into less harmful Nitrate. Water then passes through the exit grill into the outlet, returning back to the pond.

Maximum pond size: 18,000 litres / 4,000 gallons

Recommended flow rate: 6,000 litres per hour

Maximum flow rate: 10,000 litres per hour

Volume of water in Nexus: 510 litres

Amount of K1 Micro in EAZY: 18 litres

Amount of K+Media supplied: 50 litres

Maximum amount of K+Media: 150 litres.

The Nexus+ MUST be installed on a solid, level base, a minimum of 1.2 metres x 1 metre. Failure to do this will cause irreparable damage to the filter and will therefore invalidate your warranty. Nexus+ filter systems can be easily installed on gravity-fed or pump-fed set ups.

Note: An Airpump will be needed as it powers the moving bed biological filter and is also vital to the cleaning process. You need an Evolution Aqua Air Pump 75 for a Nexus 220 and an Air Pump 95 for a Nexus 320. If you increase the amount of media in the outer chamber you may well need a more powerful airpump. The correct size airpump to enable the filter media to move is detailed in the below:

50 - 75 litres = Use an Air Pump 75

75 - 100 litres = Use an Air Pump 95

100 - 150 litres = Use an Air Pump 130

150 - 300 litres = Use an Air Pump 150