Award winning aquatics company
Evolution Aqua have launched the new Nexus320+ and Nexus220+ filtration
systems. Building on the tried and tested technology that has
been ever present in their world renowned Nexus filtration systems, the
team at Evolution Aqua have gone even further to enhance their number one
Koi pond filter.
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 System.
? K+Media replaces
K1 Media in moving bed for improved biological filtration
? K+Media provides
a class leading overall surface area of 1,350m2 per m3
with a vast protected surface area of 1,025m2 per m3
? Minerals, magnesium, calcium, salt
and enzymes incorporated into K+Media during the
extrusion process to speed up filter maturation times
? Design and structure of K+Media allows a stable bio-film to form
? Fixings are pre-installed on the filter to make
fitting the Nexus Automatic Upgrade Kit much easier than before
? Nexus220+
is suitable for ponds up to 18,000 litres (4,000 gallons)
? Nexus320+
is suitable for ponds up to 34,000 litres (7,500 gallons)
NEW EVOLUTION AQUA K+MEDIA – ADVANCED FILTER 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.
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.
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.
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.
PLUS EVEN EASIER AUTOMATIC
CLEANING
Every Nexus+ filter is also supplied with fittings that have been
pre-fitted at the factory that make upgrading to the Nexus Automatic System
even easier. To benefit from automatic cleaning on the Nexus, purchase the
appropriate upgrade kit and fit it to the Nexus, it couldn’t easier!
Automatic cleaning upgrade
kits have a host of benefits for Nexus owners, with the main one being you can
set the filter to clean on a repeat cycle, even when you’re not there,
and you won’t get your hands dirty. The cleaning cycle can even be adjusted so
the filter can clean as often as you want, at any time of day,
which is particularly beneficial throughout the warmer months when Koi are
feeding more.
PRECISION ENGINEERING
As with all Evolution Aqua
filtration systems, Nexus+
are precisely manufactured at their factory in the UK. The shell of the unique
multi chamber filter is formed using specialist rotational moulding
machinery. High density polyethylene (HDPE) is injected into a Nexus shaped
mould where it is rotated through 360 degrees whilst being exposed to
incredibly high temperatures. Once formed, the robust, toughened shell is
removed from the mould and left to cool. Precision cut stainless steel
panels are fabricated to make the EAZY and grill plates which are then inserted
into position inside the unit. A series of pipework, connectors and valves are
installed that make the unit ready to hold water. Airline and fixings are also
carefully installed which enable the moving bed and cleaning process to
function. K1 Micro is added to the EAZY and K+Media is packed ready for adding into the outer chamber. A
name plate with serial number is fitted to the front of the Nexus+ once the filter has been through a vigorous quality
control check before leaving the factory ready to be installed on ponds
throughout the world.
Combining our tried and
tested, precision manufacturing process with award winning design, and with K+Media and K1 Micro at the heart of the filtration, the Nexus+ will consistently deliver crystal clear, healthy
water, allowing Koi and pond fish to thrive. With automatic cleaning
functionality now even easier to install, Nexus+ is the ultimate filter system of choice.
OVERVIEW OF HOW THE
NEXUS+ WORKS
The Nexus+ filter is an innovative biological and mechanical
filter system in one. Water enters the Nexus+ via the inlet into the inner chamber which forms as a
vortex allowing larger solids to settle out. The water then passes through the Eazy
where the finer particles are removed at the mechanical stage of filtration.
From the Eazy the water passes into the outer chamber where the biological
stage of filtration takes place using the new K+Media Moving Bed.
The water then passes through
the grill into the Exit Chamber, where it is returned to the pond through the
outlet. The Eazy is cleaned by diverting the air from the Outer Chamber to the
Eazy using the air valves or by installing the automatic cleaning system which makes
the cleaning process even easier, as the filter can be cleaned even when you’re
not there.
Nexus+ filter systems can be easily installed on gravity-fed
or pump-fed set ups. (Pump not included)
Max. pond size = 18,000 Litres / 4,000 UK Gallons / 4,800 US Gallons
Max. flow rate = 10,000 Litres/hr / 2,200 UK Gallons/hr / 2,640 US
Gallons/hr
Recommended flow rate = 6,000 Litres/hr / 1,320 UK Gallons/hr / 1,585 US
Gallons/hr
Volume of water in nexus = 510 Litres / 112 UK Gallons / 135 US Gallons
Amount of K1 Micro supplied
in EAZY filter = 18 Litres of K1 Micro
inside the EAZY
Amount of K+Media supplied
in Bio Chamber = 50 Litres of K+Media
in bio chamber
Max. capacity for K+Media =
150 Litres of K+Media in bio
chamber