Black Knight Filter Brushes (black)

Alfagrog

Alfagrog is a porous foamed ceramic material, which is lightweight, strong and inert.
It’s high surface area makes it the natural choice for colonisation by micro-organisms in biological filtration systems resulting in cleaner water.

The Alfagrog range of porous ceramic filter media is made under controlled conditions UK.

Selected clays and raw materials are rapidly sintered at high temperature to produce a foamed ceramic porous mass, which is crushed and sieved to a convenient particle size.

Alfagrog is available in a wide range of sizes giving the end user optimum media surface area in varying water flow rates.

The manufacturing process ensures that no substances are present to adversely affect the health of fish or plants. The material is pH neutral and can be used in both freshwater and marine applications.

Why is it so effective:

The key to effective biological filtration is choosing media with the highest surface area possible to allow beneficial bacteria to colonise and remove waste from the water. Alfagrog has an extremely high surface area by volume compared with other types of filter media on the market.

Alfagrog is very inert and soon colonises with beneficial bacteria. Alfagrog is made of a highly porous material that contains many thousands of tiny pockets in which bacteria can thrive making in an ideal material for biological filters

Its only draw back is its sharp on the hands when cleaning so please wear gloves..

Benefits over other filter media:

• Extremely high surface area
• Highly porous
• Inert, pH neutral
• Lightweight
• Available worldwide
• Economical
• Available in 15kg sacks

Kusuri Lithaqua Media Sack

Kusuri Lithaqua Media Sack is used with Kusuri Lithaqua Media marine mineral with a high content of minerals, trace elements and carbonates. It brings them into your pond and thereby adjusts the mineral balance and improves the water quality. Use it as pond substrate for bacteria to grow on and for fish to play in, or use it as a filter medium.

Modern multi-chamber filters contain mainly plastic media. Those are excellent supports for bacteria but they do not add anything to water quality. It is important to fill at least one filter chamber (preferably the last chamber) with Kusuri Lithaqua. It provides an enormous surface area for bacteria 10 to 20 times more than most plastic filter media) and provides the bacteria with essential nutrients.

Kusuri Lithaqua neutralises acid pH and helps to restore carbonate alkalinity.

Lithaqua is a marine mineral high in trace elements and carbonates, ideal for raising KH values. A superb filter media of porous construction, allowing a huge surface area for the growth of beneficial bacteria.

Modern filter chambers contain many and varied plastic media, these provide good support – but Lithaqua goes one stage further. Not only do the beneficial bacteria draw on nutrients from the mineral support, the media has a massive surface area up to 20 times greater than most plastic media.

Lithaqua is a biological media not intended for mechanical stages.

Use Lithaqua in a clean water chamber after mechanical removal of waste. Lithaqua is far more efficient than crushed oyster shells, and the high level of carbonates will improve carbonate alkalinity in soft water regions, neutralising low acid pH and buffer swings in pH.

Sack 300mm x 500mm

Kockney Koi Filter Brushes (Red)

Kockney Koi Filter Brushes are designed as a pre-filter for removing coarse waste and/or as a biological filter medium. Any design of filtration chamber will suit these brushes and they are easily removed for cleaning. These brushes are 10″ by 4″.