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- We do not only offer goods but also our service with 10 years experience.
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Vernostný program

All customers of our Company NUMA s.r.o. are given extra points at the end of their purchase, those points can be applied at their future shopping and get discount.

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Vernostný program

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Home » E-Shop » Filter Media » Filter Media

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    Bacteria Home Spiral special ceramic filter medium for the aquarium in a spiral shape for the settlement of nitrifying bacteria. Due to the spiral cutout and the hollow cross-section, the specific filter surface is increased and improves water circulation even when the media is stacked close to each other. By flowing water through the medium, water molecules are broken, which increases the level of dissolved oxygen in it. The medium is used in an aquarium with a high biological load.


    1,50 € Detail
  • Ogata Crystal Bio 2,5l

    Is a unique, eco-friendly filter-media, heated in excess of 900°C, creating a hyper-connecting glass cell structure. This produces media with a surface-area at least 10 times greater than most plastic alternatives. Furthermore, the weight is extremely low in comparison to other porous filter media: 10 litres of Crystal Bio weights 1,5 Kilos! Crystal Bio media has an Inter-connecting porous cell structure allowing for a massive biological surface area. Crystal Bio helps prevent pH drop. Helps reduce…

    11,00 € Detail
  • SERA Siporax 2,5l

    Is a fully biological filter material for all internal, external and trickle filter systems, and for garden pond filters. 1 liter sera siporax provides as much settling area for bacteria as approximately 34 liters of ceramic filter material. Therefore 1 liter sera siporax ensures more than 200 liters of biologically clean aquarium water. sera siporax is an excellent choice for small filters. Prefilter with sera biofibres or sera filter wool to prevent large particles from entering the biofilter.…

    33,50 € Detail
  • Kaldnes K1 Media 3 l

    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.

    23,00 € Detail
  • HELIX bio media 2,5l

    New type of floating or moving bio media. Also suited for trickle filters. Ø17 mm, height 15 mm. Surface area 720 m²/m³. Protected surface area is 589m²/m³ ! Because of the high protected surface area this media offers a very high biological filtration compared to other bio rings. Colour: white. On the displayed picture you can see the difference between new (white) biorings and “matured” bio rings with biofilm (darker colour).

    14,00 € Detail
  • Lithaqua 2,5l

    Natural mineral product very suitable as filter media and pond substrate. 10 to 20 times more surface area for bacterial growth than most filter materials. Buffers pH and regulates KH & GH. Prevents sludge accumulation on the bottom of the pond. LITHAQUA is a marine mineral, containing large amounts of minerals, trace elements and carbonates. In your pond it assures a continuous mineral balance, which is essential for a healthy biological activity. Use it as a substrate for bacteria to grow on and…

    17,00 € Detail
  • Nitrate resin - absorber of nitrate and colouring

    An ultimate weapon against blanket weed! Unique nitrate selective ion exchange resin which only removes nitrate! Even when the nitrate level is very low, no other substances which could lower the pH value (like calcium sulphate) are removed. This in comparison with other nitrate resins, which are known for years in the aquarium world. Operation: the nitrate ions are exchanged against harmless chloride ions. Advantages of this resin against conventional resins for nitrate removers: 1) High capacity,…

    32,50 € Detail
  • Ion-exchange resin 5l

    An ion-exchange resin or ion-exchange polymer is an insoluble matrix (or support structure) normally in the form of small (0.5-1 mm diameter) beads, usually white or yellowish, fabricated from an organic polymer substrate. The beads are typically porous, providing a high surface area. The trapping of ions occurs with concomitant releasing of other ions; thus the process is called ion-exchange. There are multiple types of ion-exchange resin. The most commercial resins are made of polystyrene sulfonate.…

    37,50 € Detail
  • Resealable mesh bag fine

    Separate resealable mesh bag. Closable black net bag for filter media like substrate and porous rock

    9,50 € Detail
  • Zeolite CLEAN WATER® 5l

    Zeolites are microporous, aluminosilicate minerals commonly used as commercial adsorbents. Zeolites are widely used in industry for water purification, as catalysts, and in nuclear reprocessing. Their biggest use is in the production of laundry detergents. They are also used in medicine and in agriculture.

    15,00 € Detail
  • Filter fleece on roll

    Aquarium filter fleece on roll 10 m x 60 cm, thickness 14 mm.

    29,50 € Detail
  • Fish Tank Filter Mesh Bag

    Aquarium Filter Sock is the best form of mechanical filtration. This is an essential part for wet/dry filter systems, sumps, and DIY filters. Removes excess food, detritus, organic wastes, and other particulates to lower ammonia levels and other undesirable substances. Used as mechanical filtration for any sumps and DIY filters.

    Material: Polypropylene
    Filtration accuracy: 150 μm
    Size: 100mm×360mm
    Color: White

    9,50 € Detail

All you need for your japan pond and KOI fish. We offer goods from renowned producers as OASE, Evolution Aqua, VELDA, SERA and FIAP.

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