Granular Acid washed Carbon for purifier

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• 

  NEXUS 320+ FREE SHIPPING

  £1,595.00

  NEXUS 320+ FREE SHIPPING

  £1,595.00

   FREE SHIPPING

  

   

  

   

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

  Evolution Aqua have launched the Nexus 320+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 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 Nexus Automatic Cleaning System.

  Faster filter maturation and unrivalled water clarity

  

   

  Maximum pond size: 34,000 litres / 7,500 gallons
  Recommended flow rate:11,000 litres per hour
  Maximum flow rate:13,000 litres per hour
  Volume of water in Nexus:840 litres
  Amount of K1 Micro in EAZY:20 litres
  Amount of K+Media supplied:100 litres
  Maximum amount of K+Media:300 litres

  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 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.

   

  

   

  Nexus+ Dimensions

   

  

   

   

  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

  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
  	18,000 litres 4,000 UK Gallons 4,800 US Gallons	10,000 litres/hour 2,200 UK Gallons/hr 2,640 US Gallons/hr	510 litres 112 UK Gallons 135 US Gallons	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
  	34,000 litres 7,500 UK Gallons 9,000 US Gallons	13,000 litres/hour 2,859 UK Gallons/hr 3,431 US Gallons/hr	840 litres 185 UK Gallons 222 US Gallons	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

  
  
  

  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.

   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.

  Use with PURE Pond products 

  Evolution Aqua also recommend using K+Media in combination with the PURE Pond and PURE+ Filter Start Gel to boost bacteria levels which in turn will stick to the media and speed up the maturation process even more.

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• Out of Stock

  Superfish Zeolite 10 litre Bag

  £14.99

  Superfish Zeolite 10 litre Bag

  £14.99

  Zeolite 10 litre Bag Superfish
  Zeolite reduces the Ammonia in your pond creating a healthier environment for your Koi. It works by trapping and absorbing Ammonia, extracting it from your ponds water.
  Ammonia is the number one killer of pond fish, maintaining a health level of ammonia within in your ponds ecosystem is essential, and this product can aid in this process.
  As it absorbs the ammonia, soaking in salt overnight will release the entrapped ammonia enabling it to be reused. However, should you need to treat your pond with salt or other medications you must remove the Zeolite from your filter system as the entrapped ammonia will be release back into your system.
  Quantity: 10 LTR
   Please Note: You will need the media bags to put the zeolite in with this product.

  Read more
• 

  Nexus 220/210 Lid

  £124.95

  Nexus 220/210 Lid

  £124.95

  Lid to cover the Nexus 220 and Nexus 210

  New Style, in black and accommodates The Auto Kits (please contact us for image)

  Add to cart
• Sale!

  Evolution Aqua Cetus Sieve

  Save £50.00

  £795.00 Original price was: £795.00.£745.00Current price is: £745.00.

  Evolution Aqua Cetus Sieve

  Save £50.00

  £795.00 Original price was: £795.00.£745.00Current price is: £745.00.

  

   

  Pre-filter to remove waste & debris

  The Cetus sieve is a bow screen pre-filter, made using the latest rotational molding technology. With all of its benefits and build quality, it is undoubtedly the best of its kind on the market today, regarding quality and performance! It is designed to efficiently and effectively remove large amounts of mechanical waste from a pond. It can be set-up gravity OR pump fed and has many benefits over the original bow screen technology.

   

  
  

   

  Overview

  The Cetus Sieve is a self-adjusting sieve which can be installed either gravity fed or pump fed. The Cetus Sieve enables your pond water to be filtered of large amounts of waste and debris before the water enters your current filter system. This process is commonly referred to as “pre-filtering”. The Cetus Sieve can also be used as a stand-alone unit to remove leaves and other floating debris from your pond via a surface skimmer. The Cetus Sieve will efficiently and effectively remove large amounts of mechanical waste from your pond. The Cetus Sieve is compatible with all filtration systems, however it is the perfect prefilter for the Evolution Aqua Nexus filter range. For gravity fed systems the Cetus Sieve has a weir which will automatically adjust to the flow rate of your pump. (Max flow rate 18,000 litres/hr) When the Cetus Sieve is used in front of any other biological/mechanical filter the period in between cleaning will be extended. The biological process is improved by the removal of organic matter which would consume oxygen and leach ammonia and other compounds into the water.

  Specifications

  Model	Max. flow rate	Inlet – Gravity Fed	Inlet – Pump Fed	Outlet – Gravity Fed	Outlet – Pump Fed
  	18,000 Litres/hr 4,000 UK Gallons/hr 4,755 US Gallons/hr	110mm/4″	50mm/1½”	1½”	3″

   

  Dimensions

  

  

  How the Cetus Sieve works

  Installing the Cetus Sieve The Cetus Sieve has a variable inlet height using the unique patented Pondflow regulation system – for use when gravity fed. This allows water levels within the pond to drop without causing the circulating pump to be starved of water. The Cetus will allow a skimmer or a bottom drain to accept vast amounts of waste without excessive cleaning needed to be carried out. The water must then be pumped to either a normal filter above pond level (Nexus Eazy/Eazy Pod) or to a pressurised filter.

  If pump fed, the sieve is placed above pond water level and then the exit water is gravity dropped into your main filter.

  The Cetus sieve is a bow screen pre-filter, suitable for pre-filtration of any biological filter including all pressured filters. It is advised that all pressurised filters be pre-filtered using a Cetus to reduce excessive backwashing and maintenance due to heavy solids.

   

  
  

   

  Installing the Cetus Sieve

  The Cetus Sieve has a variable inlet height using the unique patented Pondflow regulation system – for use when gravity fed. This allows water levels within the pond to drop without causing the circulating pump to be starved of water. The Cetus will allow a skimmer or a bottom drain to accept vast amounts of waste without excessive cleaning needed to be carried out. The water must then be pumped to either a normal filter above pond level (Nexus Eazy/Eazy Pod) or to a pressurised filter.

  If pump fed, the sieve is placed above pond water level and then the exit water is gravity dropped into your main filter. The Cetus sieve is a bow screen pre-filter, suitable for pre-filtration of any biological filter including all pressured filters. It is advised that all pressurised filters be pre-filtered using a Cetus to reduce excessive backwashing and maintenance due to heavy solids. The Cetus Sieve has a variable inlet height using the unique patented Pondflow regulation system – for use when gravity fed. This allows water levels within the pond to drop without causing the circulating pump to be starved of water. The Cetus will allow a skimmer or a bottom drain to accept vast amounts of waste without excessive cleaning needed to be carried out. The water must then be pumped to either a normal filter above pond level (Nexus / Eazy Pod) or to a pressurised filter.

  If pump fed, the sieve is placed above pond water level and then the exit water is gravity dropped into your main filter. The Cetus sieve is a bow screen pre-filter, suitable for pre-filtration of any biological filter including all pressured filters. It is advised that all pressurised filters be pre-filtered using a Cetus to reduce excessive backwashing and maintenance due to heavy solids.

   

  GRAVITY-FED INSTALLATIONS

  

  GRAVITY-FED INSTALLATIONS

  
  

  
  

  

  PUMP-FED INSTALLATIONS

  

  Add to cart