Filter media

Clay is a precious gift of nature. Our clay was formed about 150 million years ago. This clay is extracted in open pits, carefully prepared, finely ground and granulated into beads. At a fiery heat of over 1200°C, this clay granulate is fired in a rotating rotary kiln without artificial additives, pesticides or dyes. This process technology makes the outer skin and the core extremely porous and creates a large surface area for the settlement of bacteria. Colonisable surface 140 m3 per litre. Ideally, the clay granulate is filled into filter media bags for multi-chamber filters (must be ordered separately!). This makes cleaning the filter easier, as the mesh bags are easy to remove . Developed for larger filter chambers. Reaches almost 100 % of its filter performance in approx. 4 - 6 weeks. Can be left in the filter for a very long time. Is subsequently a good water reservoir and thus contributes to soil improvement. Much lighter than gravel! Easy cleaning of the filter chamber Bulk density: 0.34 kg/dm3 Bulk density: 0.58 kg/dm3 up to 280 m²/L surface!

Foam is used in garden pond filters and in aquaristics. Foam mats are suitable for mechanical and biological filtration and are a widely used filter material. Due to the large, inner and outer surface, many bacteria can settle.

Filter media bag for easier change of filter media. Technical data: - made of weatherproof plastic- pH-neutral and non-toxic- colour : black

Filter tube 40 mm slot 1 mm per running metre

For years, this filter medium has proven itself for garden ponds and aquariums. It is also an eye-catcher in any aquarium. The medium-fine filter sand is particularly suitable for water treatment. This filter sand / filter gravel is a natural raw material that is turned into a high-quality industrial mineral by means of the most modern processing techniques. The products meet the requirements of DIN standards EN 12904, DIN EN 15798 and DIN 4924 and are therefore suitable for use in drinking water treatment, for the treatment of swimming and bathing pool water and for well construction. The filter sand / filter gravel is also ideal for aquariums, koi ponds and pools.

The transparent water-permeable filter screen tubes fix the foam cartridges. An absolute must for every cartridge or sponge filter. By using filter screen tubes, the water can flow through the entire foam cartridge and is kept in shape even when dirty.

The transparent water-permeable filter screen tubes fix the foam cartridges. An absolute must for every cartridge or sponge filter. By using filter screen tubes, the water can flow through the entire foam cartridge and is kept in shape even when dirty.

The transparent water-permeable filter screen tubes fix the foam cartridges. An absolute must for every cartridge or sponge filter. By using filter screen tubes, the water can flow through the entire foam cartridge and is kept in shape even when dirty.

The transparent water-permeable filter screen tubes fix the foam cartridges. An absolute must for every cartridge or sponge filter. By using filter screen tubes, the water can flow through the entire foam cartridge and is kept in shape even when dirty.

The transparent water-permeable filter screen tubes fix the foam cartridges. An absolute must for every cartridge or sponge filter. By using filter screen tubes, the water can flow through the entire foam cartridge and is kept in shape even when dirty.

Filter tube 110 mm slot 0.8 mm per m

Filter tube 110 mm slot 1 mm per m

Filter tube 110 mm slot 2 mm per linear metre

Filter tube 110 mm slot 3 mm per m

Filter tube 50 mm slot 2mm per linear metre

Filter tube 50 mm slot 3 mm per m

A circumferential spiral, with blades pointing inwards, characterises the sensible design. It reduces flow shadows, increases effectiveness and increases the proportion of protected surface area for suspended bodies with low flow resistance. Large openings in this filter material allow high flow rates and provide maximum surface area for the formation of biology. These properties make this filter material interesting for all koi pond filters. Perfect FIXED BED MEDIUM, for chambers, biotowers, trickling filters, and "moving bed" processes.

A circumferential spiral, with blades pointing inwards, characterises the sensible design. It reduces flow shadows, increases effectiveness and increases the proportion of protected surface area for suspended bodies with low flow resistance. Large openings in this filter material allow high flow rates and provide maximum surface area for the formation of biology. These properties make this filter material interesting for all koi pond filters. Perfect FIXED BED MEDIUM, for chambers, biotowers, trickling filters, and "moving bed" processes.

A circumferential spiral, with blades pointing inwards, characterises the sensible design. It reduces flow shadows, increases effectiveness and increases the proportion of protected surface area for suspended bodies with low flow resistance. Large openings in this filter material allow high flow rates and provide maximum surface area for the formation of biology. These properties make this filter material interesting for all koi pond filters.

A circumferential spiral, with blades pointing inwards, characterises the sensible design. It reduces flow shadows, increases effectiveness and increases the proportion of protected surface area for suspended bodies with low flow resistance. Large openings in this filter material allow high flow rates and provide maximum surface area for the formation of biology. These properties make this filter material interesting for all koi pond filters. Perfect FIXED BED MEDIUM, for chambers, biotowers, trickling filters, and "moving bed" processes.

This filter medium has proven itself in garden pond filters for years. In multi-chamber filter systems, these mats are used from the 2nd filter chamber onwards. The microbiology can settle on the large surface and thus break down the pollutants in the pond water. Made of pure polyester fibres (no recycled material), the mats are manufactured with water-insoluble glue and cannot release any pollutants into the water. 200x100 cm, 3.8 cm thickness

Oyster shells - KH and pH alwaysin orderOyster shells have a distinctly stabilising effect on the carbonate hardness of the water (KH value) and thus also on the acidity (pH value). We supply clean and disinfected oyster shells of high quality. It is often assumed that with slightly harder tap water no problems with the KH and pH value would arise. The KH value is considered to be a buffer of the pH value of the water to a certain degree. Fish, plants and biological filters break down the carbonate hardness of the water. If then, for example in winter, little water is renewed, the KH value can quickly drop too far. Even in times with a lot of precipitation, the KH value decreases rapidly. This has serious consequences for the fish, because it can lead to a so-called pH crash - a sudden sharp drop in the pH value.In many cases, the KH value in the fish pond is not measured frequently enough. Only when problems occur, i.e. when it is actually already too late, are measures taken, for example in the form of adding agents such as KH+ powder. However, KH+ powder has some disadvantages:- a lot of powder quickly disappears via the bottom drain or the filter system- the short-term boost effect causes large fluctuations in the water values- constant measurements and further powder additions are necessary. Oyster shells provide a complete, longer-term stabilisation of the KH and pH values. The shells only slowly dissolve when the KH drops, buffering the pH value. Completely independent of the amount of precipitation, water renewal or the time of year, the oyster shells keep the KH and pH value in your pond at a stable level. Only when the oyster shells have almost completely dissolved does new material need to be added. Roughly speaking, 1 bag of oyster shells is needed per 10 m³ of water per year; the exact amount depends, of course, on the influences described above and other factors. We supply oyster shells in a net (bag) so that they can easily dissolve. The oyster shells have been washed with chlorine and then dried, which ensures that no harmful bacteria, fungi or germs settle on them. The shells are also excellent as biological filter material in trickle filters or multi-chamber systems.

Light bar plate white - 1200 x 603 mm - honeycomb 13 x 13 x 13 mm The perfect support for all filter materials. The grid size of 13 x 13 mm allows dirt to reach the filter material. For larger areas or for heavy filter media, it is recommended to install one or more point supports. This can be a slotted PVC pipe or a filter screen pipe.

Light bar plate white - 1200 x 603 mm - honeycomb 13 x 13 x 13 mm The perfect support for all filter materials. The grid size of 13 x 13 mm allows dirt to reach the filter material. For larger areas or for heavy filter media, it is recommended to install one or more point supports. This can be a slotted PVC pipe or a filter screen pipe.