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Evolution Aqua Nexus+ Filter
*Nexus Comes with Lid, Air Pump and Waste Pipe Kit
Nexus 220+
Nexus 320+
Evolution Aqua have launched the Nexus320+ and Nexus220+filtration systems. 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 Nexus320+ and Nexus220+ filters now come 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 Cleaning System.
How the Nexus+ Works
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.
Installing the Nexus+
The Nexus+ MUST be installed on a solid, level base, a minimum of 1.2 meters x 1 meter. Failure to do this will cause irreparable damage to the filter and will therefore invalidate your warranty.
GRAVITY-FED INSTALLATIONS
By this we mean that your pump is going to be used to return the filtered water to the pond and therefore your filter will be supplied by gravity via a larger diameter pipe. In this situation the water level in the filter will be at the same level as the pond.

PUMP-FED INSTALLATIONS
By this we mean that if your pump is going to be used to supply the water to the filter, and the filtered water then returns back into your pond via gravity, i.e. down a waterfall, or through a large diameter pipe, this is referred to as PUMP FED (i.e. the water is fed to the filter using a pump).

|
Model |
Max Pond Size |
Max Flow Rate |
Volume of Water in Nexus |
Amount of K1 Micro in Eazy Chamber |
Amount of K+Media supplied in Bio-chamber |
Max Capacity for K+Media |
|
Nexus220+ |
18,000 litres |
10,000 litres/hour |
510 litres |
18 litres of K1 Micro inside the Eazy |
50 litres of K+Media in the bio-chamber |
150 of K+Media in the bio-chamber |
|
Nexus320+ |
34,000 litres |
13,000 litres/hour |
840 litres |
20 litres of K1 Micro in the Eazy |
100 litres of K+Media in the bio chamber |
300 litres of K+Media in the bio chamber |
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