0800 0336 150| 01256 320350 | Fax: 0870 7601421
0800 0336 150 | 01256 320350
Fax: 0870 7601421
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2024 Evolution Aqua Nexus + Filtration Systems

Nexus + Filter How it works Nexus 220+ DimensionsNexus 320+ Dimensions Gravity Fed Installation Layout Pump Fed Installation Layout


The 2024 Nexus + Plus Advanced Filtertion Systems 220 & 320 Models

Advanced filtration systems for Koi ponds now with NEW K+Media

{Description}
Evolution Aqua have recently launched the Nexus 320+ and Nexus 220+ Plus 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 Nexus 220+ and Nexus 320+ 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 optional Nexus Automatic Cleaning System

{Features}
Features:

• Latest K+ media for biological filtration
• Faster filter maturation
• Minerals added to media
• Class leading surface area
• Stable bio-film production
• Easy auto cleaning kit upgrade

{How it works}

How the Nexus+ 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 stainless steel grills in the 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

{Installing the Nexus}

Installing the Nexus:

• 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

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)

{Specifications}

Specifications:

Nexus 220+
• Maximum Pond Size: 18,000 litres (4000 UK Gallons)
• Maximum Flow Rate: 10,000 litres per hour (2200 UK Gallons)
• Volume of water in the Nexus: 510 litres ( 112 UK Gallons)
• Amount of K1 Micro Media in the Easy Chamber: 18 Litres
• Amount of K+ Media supplied in the Bio Chamber: 50 Litres
• Maximum capacity for K+ Media: 150 Litres
• Dimensions: As shown on the images above

Nexus 320+
• Maximum Pond Size: 34,000 litres (7500 UK Gallons)
• Maximum Flow Rate: 13,000 litres per hour (2859 UK Gallons)
• Volume of water in the Nexus: 840 litres ( 185 UK Gallons)
• Amount of K1 Micro Media in the Easy Chamber: 20 Litres
• Amount of K+ Media supplied in the Bio Chamber: 100 Litres
• Maximum capacity for K+ Media: 300 Litres
• Dimensions: As shown on the images above

{Air pump requirements}
Air Pump Requirements:

You can increase the biological capacity of your Nexus+ by adding additional K+ Media into the outer chamber up to teh maximum capacity

You will however need to ensure that you have the correct size of air pump (not supplied) to enable the K+ Media to move sufficiently

Total amount of K+ Media in the outer chamber / recommended air pump

• 50 - 75 Litres / EA Air Pump 75
• 75 - 100 Litres / EA Air Pump 95
• 100 - 150 Litres / EA Air Pump 130
• 150 - 300 Litres / EA Air Pump 150
{Optional self cleaning add on}

Nexus + Automatic Self Cleaning Add On

• The Nexus+ Automatic Cleaning System enables Nexus Filter owners to benefit from a fully automated cleaning cycle on their multi award winning Nexus filtration systems. Available in 3 different models to suit Nexus Pump Fed set ups as well as Nexus 220 and Nexus 320 Gravity Fed installations

• Physically turning ball valves and manually switching pumps on and off will become a thing of the past thanks to the Nexus Automatic System, all of the key processes that form the cleaning cycle are now controlled automatically with this easy to install kit

• The Nexus Automatic Cleaning System is factory set to perform a 10 minute cleaning process every 3 days, but the frequency of cleaning can be altered from once an hour to once every 10 days depending on the cleaning frequency which suits you and your pond. The cleaning cycle can also be performed manually, by triggering the manual clean button on the control box

• The Nexus+ Automatic Cleaning System is supplied with the following components (Pump fed versions do not have the automatic inlet plate)
• Automatic Inlet Plate
• Automatic Waste Valve
• Control Box
• Air Control Valve Box

• Hassle-free way to clean Nexus filtration systems
• Automates the cleaning process of the Nexus
• Easily fits onto Nexus filters (post-2006 models)
• Electronic control box automatically operates valves and pumps
• Adjustable timer controls the frequency of the cycle
• Easy to set up for multiple cleaning cycles
• Manual cycle can be carried out at the touch of a button
• Gravity fed and pump fed versions available
{Media used in this filter}

Media used in this filter:


New advanced filtration media. Plastic media, for use in biological pond filters - specifically in moving bed bio reactors, was pioneered by Evolution Aqua, some 20 years ago. In recent years, other plastic media have come onto the market, usually with the aim of trying to get more and more surface area. However, one drawback to using plastic media has always been the time it takes to establish a stable biofilm – essential for good filtration

Minerals added for faster filter maturation. During the extrusion process, Evolution Aqua add a range of minerals, along with magnesium, calcium, enzymes and salt to the raw material that is used to manufacture K+Media. The result means that K+Media will mature much faster than many other types of media

• The addition of these minerals creates a rough surface on the media. This textured surface has a microscopic honeycomb of peaks and craters that allow waste particles to collect, and nitrifying bacteria to form

• The minerals act as a food source for the bacteria, helping the bacteria to develop and multiply at a faster rate, further improving maturation times.

• Calcium alone has proven advantages for developing and maintaining effective bio-films.

• The enzymes that are added also help to make the media “sticky” so waste particles can adhere to media easier.

• Salt is added during the extrusion process, which is dissolved during the cooling process, leaving a rough surface on which bio-film can easily adhere.

Increased surface area. With a new shape and profile, K+Media has also been designed to have an increased and class leading surface area, meaning an overall surface area of 1,350m2 per m3. More importantly for biological filtration, the protected surface area of K+Media is 1,025m2 per m3. This allows a stable bio-film to form and remain intact when used in moving bed biological filtration, as in the new Nexus+

Stable bio-film development. The shape of K+Media optimises the amount of “quiet zones” within the media where a stable bio-film can develop. Whilst K+Media keeps the integral profile of K1 Media at its core, there is an extra layer of cells and fins around the outside of each piece that enable microscopic organisms such as Rotifers and Vorticella to thrive. This is an additional benefit as competitor media do not have such “quiet zones” that would allow these higher lifeforms of filter feeders to develop. The bacteria and organisms that form within the bio-film ensure the media delivers optimum levels of biological filtration in the moving bed, which has been proven filtration technology for many years in the fishkeeping hobby

After many years of research, Evolution Aqua have now developed a new media that not only gives class leading surface area, but also overcomes the problem of long maturation times

K+Media is designed and manufactured in the UK by Evolution Aqua. This advanced media, with its innovative design, and class leading surface area provides enhanced biological and mechanical filtration

As Evolution Aqua extrude K+Media, Minerals and Enzymes are added to the raw material. The result of this process, unique to Evolution Aqua, is a filtration media that not only outperforms most of its competitors due to its large protected surface area, but also answers the problem of how to speed up the time taken to mature your filter
{Availability}

Availability:

These filters/auto cleaning units will take up to 7 days to reach you

After receiving your order we will contact you to arrange the most convenient day to deliver to you

The filter will be securely packed to a pallet and our carrier will deliver to the nearest kerb side location

Nexus 2024 Easy Filter 220 + Plus

Price: £1,395.00 (Including VAT at 20%)


Nexus 2024 Easy Filter 320+ Plus

Price: £1,595.00 (Including VAT at 20%)


Nexus 2024 Automatic Cleaning System for 220+ Plus Gravity Set Up

Price: £659.95 (Including VAT at 20%)


Nexus 2024 Automatic Cleaning System for 320+ Plus Gravity Set Up

Price: £659.95 (Including VAT at 20%)


Nexus 2024 Automatic Cleaning System for 220+ Plus or 320+ Plus Pump Fed Set Up

Price: £549.95 (Including VAT at 20%)


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