Evolution Aqua K+ Down-Flow Filter Media Sinking 50L
SKU: 6150768554

Evolution Aqua K+ Down-Flow Filter Media Sinking 50L

Sale price$80.95 Regular price$89.95
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Description

Evolution Aqua K+ Down-Flow Filter Media Sinking 50LEvolution Aqua K+ Down Flow Filter Media Sinking 50L K+ media provides the maximum active surface area for bacteria to colonise, more than other types of static media. It is this process which removes harmful ammonia and nitrite from the water. Unlike foam, matting, or other forms of static filtration media, the Kaldnes media is designed to move freely within your filter and the constant chaotic movement of the air from your pump, causes the media to

Evolution Aqua K+ Down-Flow Filter Media Sinking 50L

K+ media provides the maximum active surface area for bacteria to colonise, more than other types of static media. It is this process which removes harmful ammonia and nitrite from the water. Unlike foam, matting, or other forms of static filtration media, the Kaldnes media is designed to move freely within your filter and the constant chaotic movement of the air from your pump, causes the media to self-clean and thus requires no maintenance - this allows the filter to reach optimum effectiveness without the disturbance of periodic cleaning, avoiding unnecessary loss of bacteria within the filter.

K Plus - Whats New?
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+.

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.

As Evolution Aqua extrude the 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.

Specifications
K+ total surface area: 1350m2 per m3
K+ total protected surface: 1025m2 per m3
Floating media ideal for MBBR (Moving Bed Bio-Film Reactor filters)
Sinking media ideal for down-flow filtration systems

Dimensions
10.2mm Diameter
8mm Width

  • Advanced K+Media engineered with a new design for improved filtration
  • 1025m2/m3 protected surface area and 1350m2/m3 total surface area
  • Stable Bio-film can develop within the quiet zones to allow rotifers, vorticella etc to thrive
  • Faster filter maturation times thanks to minerals incorporated into K+Media
  • Floating version for MBBR and sinking version for down-flow
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 6150768554

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Lisa
Grantham, US
★★★★★ 5
Entertaining
Color: Blue
This smart ball is a great toy for your dog. It’s the perfect size for most dogs and it’s made of durable material that chewing doesn’t hurt. It’s easy to charge and will run for hours. It’s very quiet and has 3 modes of play to choose from, rolling, bouncing or a combination of both to keep them (and you) entertained for hours.
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Reviewed in the United States on March 27, 2026
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Arianny Rodríguez
San Leandro, US
★★★★★ 5
I bought this interactive ball for my dog, and it has been an excellent purchase.
Color: Blue, Color: Blue
I bought this interactive ball for my dog, and it has been an excellent purchase. He loves playing with it because it moves and bounces on its own, keeping him entertained for a long time. It feels durable, is easy to charge, and is of very high quality. I would definitely recommend it to anyone looking for a fun, long-lasting toy for their pets.
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Reviewed in the United States on June 9, 2026
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Sheyla Lopez
West Palm Beach, US
★★★★★ 5
Great Interactive Dog Toy!
Color: Red
My dog absolutely loves this interactive ball! The material feels durable and stands up well to chewing. The bouncing and moving action keeps my dog entertained and active for long periods of time. It’s also easy to recharge and the size is perfect for medium to large dogs. So far, it has worked great and seems built to last. I highly recommend it to anyone looking for a fun and engaging toy for their pet! 🐶🐾
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Reviewed in the United States on June 13, 2026
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Tom O'Hotto
Houston, US
★★★★★ 1
Not Golden Retriever Proof
Color: Red
My Golden Retriever destroyed this ball within a couple hours of receiving it. Turned my back for a minute and she had it open and chewed on the internal part wrecking the charging port. Then proceeded to rip chunks off of the outer part. This is a great idea but maybe make it more difficult to open. BTW, my dog loved the ball when it was functioning properly.
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Reviewed in the United States on January 24, 2026
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Tasha Gilbert
Phoenix, US
★★★★★ 5
Great Interactive Toy
Color: Blue
This toy is amazing for keeping my dog entertained and active! The movement feature really grabs my dog’s attention, and he loves chasing and playing with it. It is strong and durable, and the design is very cute. It’s also great for preventing boredom, especially when my dog has extra energy. The battery lasts a good amount of time and it was very easy to set up. My dog plays with it every day and hasn’t gotten tired of it. I highly recommend this toy to anyone who wants a fun and interactive way to keep their dog happy and busy!
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Reviewed in the United States on April 1, 2026

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