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November 21, 2008

Pond Filter Media » Kaldness

Kaldness K1 Media

Kaldness K1 Media

Kaldness K1 Media

Kaldnes Moving Bed process, which has been scientifically tried and tested in fish farming and waste water treatment for over 10 years, is now available for fish keepers and is exclusively distributed worldwide by Evolution Aqua. The media is engineered in a wheel shape and is slightly positively bouyant. This allows a small amount of water flow to circulate the media throughout the vessel. This flow is created with your air pump and air stones or diffuser etc.

How it works :

Maturing the Kaldnes bio-media is important because a delicate eco-system is naturally developing for the bacteria involved in the nitrification process. Kaldnes media provides the maximum active surface area for the bacteria to colonise, more than other types of static media. It is this process which removes harmful ammonia and nitrite from the water.

How it is different to other media :

As the Kaldnes media moves within the filter, it causes the old dead bacteria on the outside to be displaced. This makes space for new younger heavier feeding bacteria to rapidly colonise. Within the wheel is a protected surface which enables colonies of bacteria to naturally follow their lifecycle, of maturing, dying and then fueling the latter stages of the nitrification cycle. Kaldnes has been designed to provide the best possible habitat for both young and mature beneficial bacterial colonies.

Incorporating the Kadness K1 Moving Bed Process

Developed by Professor Halvard Odergard at Trondheim University of Science and Technology the Kaldnes Moving Bed™ bio film process has been designed specifically to create the most effective environment for the nitrification process to take place. The media is engineered in a wheel shape and is slightly positively buoyant, allowing a small amount of water flow (created by adding air to the process) to circulate the media throughout the vessel.

Kaldness K1 MediaOxygen and food (ammonia and nitrite) gives the bacteria the means to grow, whilst the Kaldnes media provides maximum surface area for the bacteria to colonise and produce bio film. It is this process, which removes harmful ammonia and nitrite from the water. As the Kaldnes media chaotically circulates within the bio tank, it causes old dead bacteria/bio film on the outside, to be removed making space for new younger heavier feeding bacteria/bio films to colonise. Within the wheel, is a protected surface, which enables colonies of bacteria to naturally follow their life cycle, maturing and dying, in turn fuelling the latter stages of the nitrification conversion process. It also assists in the breakdown of any small particles passing through from the mechanical stage. Therefore, the Kaldnes media maintains both a young bio film and a maturing bio film providing a more consistent filter performance, whilst improving water quality, encouraging healthier Koi and aiding in reducing green water and blanket weed. 

Kaldness K1 in MotionDue to chaotic movement of the Kaldnes K1 media, the process is self-cleaning and requires no maintenance. This allows the filter to reach optimum effectiveness without the disturbance of periodic maintenance, avoiding unnecessary loss of bacteria within the filter preventing high levels of ammonia and nitrite within the water.

This amazing bio media which is reputed to be 10 times more efficient than matting and lowers  Nitrate!  100 litres can process 1/2 kilo of high protein food per day!  Designed to be moving at all times, Kaldnes K1 is self cleaning, owing to its continual motion in both water and airflows and is also therefore massively oxygenated thus rendering it super efficient. Kaldnes has also proven to be a fantastic static media to improve mechanical filtration as it does not block, but is capable of removing very fine solids and is very easy to clean.

Surface Area 800 Square metres per cu.m Kaldnes K1 is a buoyant media.

Item # Description Price Add to Cart
MEDIA50LKaldness K1 Media - 50 Litres£54.95 Add to Cart

Kaldness K3 Media

Kaldness K3 Media

Unlike foam, matting, or other forms of static filtration media, the Kaldnes K3 media is designed to move freely within your filter. 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. 50 Litres of K1 media will handle up to 250 grammes of food per day and for K3, 225 grammes of food per day. For retrofit of existing filters, K3 media is the most suitable due to its larger size and ease of control.

Like K1, K3 is self cleaning and very efficient as a bio media. However it is larger than K1, K3 has a multi layer and multi spoke construction and is ideal for retrofitting into a conventional filtration system.

Surface area 584 Square metres per cu.m. Kaldnes K3 is a buoyant media.

Item # Description Price Add to Cart
MEDIA50LK3Kaldness K3 Media - 50 Litres£44.95 Add to Cart

Kaldness Biochip Media

Kaldness Biochip Media

Since the development of the Kaldnes moving bed process and its successful introduction into the waste water treatment industry in 1991, Kaldnes K1 media has become the industry standard throughout the world. However Kaldnes have not been idle and they have continued their extensive R+D programme to further improve the efficiency of their process over the last 12 years.

 The Bio Chip is the result of this R+D and is much more that just a different shaped media. Although the total protected surface area is more than 2.4 times higher than K1 this is only part of the story.

The main difference to K1 is that the protected area or quiet zone in Bio Chip is designed to be the perfect environment for micro animals not just bacteria. The extremely quiet zones created by the hydrophilic layer protecting every cavity in the Bio Chip is critical to allow these micro animals to flourish. With other types of media they tend to be flushed out.

Add to existing K1/K3 moving bed in ratio of 20 % to total media volume, 1 part Biochip to 4 parts K1/K3, so just to confirm 25litres of Biochip to every 100 ltres of K1.

These micro animals feed on small particles such as fish waste, dead bacteria and algae. There are many different types of these micro animals as you can see from our illustrations. Consider that the Rotifier as illustrated above is filtering 100,000 times its own volumes per hour and is feeding on particles up to 10 micron in size. It is these small particles that are always difficult to remove by mechanical means and make our water cloudy !

Item # Description Price Add to Cart
MEDIA25LBCHIKaldness Biochip Media - 25 Litres£64.95 Add to Cart

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