Aqua K1 Media 3l – ‘Kaldnes’ movable filter cartridge
Evolution Aqua K1 Media 3 l is a lightweight moving biological filter medium for freshwater, marine and pond…
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This 3 l pack of Evolution Aqua K1 Media suits keepers who run a canister, sump, pond or internal filter with a media compartment and want more biological filtration in the same space. The lightweight K1 elements are carried by the water flow, so they stay in motion instead of settling in one spot.
Why it matters
- Constant movement: the light media is easily carried by the current and can move through nearly the whole space allocated to it.
- Bacterial growth: nitrifying bacteria colonise the media and lower NH3, NH4 and NO2 levels in the water.
- Self-renewing surface: the elements knock against each other and the basket walls, shedding older bacteria so new colonies can establish on the freed surface.
- Spread to the rest of the system: shed bacteria settle in other media and in the tank, which supports overall filtration.
Specifications
- Volume: 3 l
- Weight: 0.7 kg
- Brand: Evolution
- Symbol: EVO K1 MEDIA 3L
- EAN: 5903900044776
What it works with
The medium is intended for any filter with a media container: pond pressure and flow-through filters, including DIY tanks or barrels, marine sumps, and freshwater external filters where roughly half of the basket can be filled. It also fits internal filters with media baskets, such as the SunSun CHJ, Sea Star Turbo or Aquael Turbo. The medium works as a static biological layer too, but movement increases its efficiency.
Technical specification
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Frequently asked questions
Yes, it fits any filter with a media container. For an external filter, you can put it in the media basket using about half of the basket's volume. Internal filters such as SunSun CHJ, Sea Star Turbo or Aquael Turbo have baskets designed for this type of media.
No, it can also work as a standard static biological media. However, movement increases its efficiency, so it works best when the water flow keeps it circulating.
Through nitrifying bacteria, it helps lower ammonia (NH3), ammonium (NH4) and nitrite (NO2) levels.
Yes, the supplier lists marine aquariums and sumps as suitable applications. It can be added to a sump even if you did not plan for it, and it does not take up space needed by other media.
The package contains 3 litres of media and weighs 0.7 kg.
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