Alfagrog

Kockney Koi Red Filter Brushes 

Kockney Koi Red Filter Brushes are suited for both mechanical and biological filtration. As water passes through a series of brushes in the filtration system, the bristles will catch and filter out suspended solids, whilst also providing an ample surface area where the nitrifying bacteria can colonize and thrive. Clean the brushes by removing them from the filter, shaking them out and rinsing in pond water..DO NOT use tap water to rinse them, as this will severely to reduce or eliminate the beneficial bacteria which is growing on the brush. Read more

Size:

• 10″ x 4″

NT LABS Zeolite 5kg

NT Labs Zeolite is commonly used in pond filtration systems to help absorb and remove ammonia and other nitrogenous compounds. Recharging the zeolite helps maintain its effectiveness over time. For best results, use NT Labs Zeolite throughout the year and recharge it regularly. Consider recharging and topping up when water quality begins to decline. Read more

How to use:

1. Place the zeolite into the filter bag provided and rinse it under the tap.
2. Position the zeolite in the filter in an area with a strong flow of water.
3. Test your water quality using NT Labs Test Kits regularly.
4. Recharge the zeolite in spring and every 6 weeks unless poor water quality is detected. When recharging, replace 50% of the zeolite.
5. To recharge, prepare a salt solution (4 tablespoons per gallon of water) and soak the zeolite chunks for 24 hours.

5kg per 1500 gallons (6820 litres)

Media Grids

Media Grids are a most useful aid for anyone building their own filtration system these can be placed at a level that provides a void of water underneath the media itself and keeps the media out of any debris that may have gathered in the filter. It supports the media and is quite robust and is a must really can be fixed together and cut to size using simply a fine toothed wood saw or angle grinder. Read more

Size:

• 27″ x 16″