Filters
Yamitsu
These fibreglass filtration systems from Kockney Koi come in a wide variety of models to suit virtually every pond.
| Model | Vortex ? | Feed ? | Max Flow Rate (Litres) | Pond Size (Litres) |
| 2500 | N | Pump | 1500 | 2500 |
| 4000 | N | Pump | 3000 | 4000 |
| 5000V | Y | Gravity | 3000 | 5000 |
| 8000P | N | Pump | 5000 | 8000 |
| 8000G | Optional | Gravity | 5000 | 8000 |
| 9000 | N | Pump | 6000 | 9000 |
| 10000V | Y | Gravity | 6500 | 10000 |
| 12000P | N | Pump | 7500 | 12000 |
| 12000G | Optional | Gravity | 7500 | 12000 |
| 15000 | N | Pump | 9000 | 15000 |
| 18000 | Y | Gravity | 10500 | 18000 |
| Rotafold | Integral | Gravity | 7500 | 12000 |
| 20000 | Optional | Both | 12000 | 20000 |
| 2 Bay Bertha | Optional | Gravity | 12500 | 22500 |
| 3 Bay Bertha | Optional | Gravity | 19000 | 35000 |
| 4 Bay Bertha | Optional | Gravity | 24000 | 45000 |
| 5 Bay Bertha | Optional | Gravity | 27000 | 55000 |
These gravity filters (i.e require installation at or above the desired outlet) are for pump fed systems. They contain filter sponges to provide mechanical filtration, UV tubes to kill the algae that cause green water and SUPRA bio media.
| Model | UV Rating | Max Flow Recom. L/h | Max Pond Size (Litres)* |
| C8W compact bio | 8W | 500-1500 | 2500 |
| C16W compact bio | 16W | 1000-3000 | 5000 |
| M15W medium bio | 15W | 3000-6000 | 10000 |
| M25W medium bio | 25W | 4000-8000 | 15000 |
| L25W large bio | 25 | 5000-10000 | 25000 (2 req) |
| L30W large bio | 30 | 6000-12000 | 20000 |
These pressurised filtration systems are to be used on pump fed systems. The water is pushed through layers of filtration foam which provides mechanical and some biological filtration also contained is an integral UVC clarifier to kill algae. Dirty water is sealed within the unit until the simple backwash mechanism is operated to clear the foam and flush away the polluted water. These can be buried almost completely in the ground and due to the pressurised nature can be used before waterfalls without being elevated.
| Model | UV Rating | Max Flow Recom. L/h | Max Pond Size (Litres)* |
| 3000 | 9W | 3000 | |
| 6000 | 11W | 6000 | |
| 1000 | 11W | 11000 |
The following Filtoclear sets are also available:
3000 set
Containing Filtoclear 3000, Aquamax 2000 and Biokick 1 Fiterstart
6000 set
Containing Filtoclear 6000, Aquamax 5500 and Biokick 1 Filterstart
11000 set
Containing Filtoclear 11000, Aquamax 10000 and Biokick 1 Filterstart
Using different grades of foam to provide mechanical and biological filtration the Biotec systems come in various sizes to suit a wide range of ponds. Models can be combined to allow for larger ponds or those with higher stocking levels.
| Model | Max Flow Recom. L/h | Pond Size (Gallons) |
| Biotec 4 | 2500 | 5000 |
| Biotec 5 | 5500 | 9000 |
| Biotec 10 | 15000 | 29000 |
| Biotec 30 | 30000 | 54500 |
‘The Answer’ is designed to fit to exit pipework from the settlement stage or prime mechanical filtration chambers, whether gravity or pump fed from the pond. The answer helps to prevent solids from entering the biological stage of the filter. All the water which passes through ‘The Answer’ is finely filtered (particles from 100 micron to 200 micron are removed – depending on the model). The rotor arms which pump water from inside to continually clean the screen ensure that there are no blockages – particles lodged on the outside which are naturally trying to get through, are forced away and eventually settle at the bottom of the container.
‘The Answer’ can be fitted to the Nexus, or to most settlement chambers or primary vortexes (depending on the size of the container – please ask for details if fitting to existing system).
| Model | Max Flow Recom. L/h | Screen Size |
| 250 | 6000 | 100 Micron |
| 350 | 10000 | 150 Micron |
| 410 | 13000 | 200 Micron |
The Nexus combines mechanical and biological filtration in one unit and can be used on ponds from 4500 to 34000 litres. The Nexus consists of a primary settlement vortex, which contains a foam block as standard but can be upgraded to contain ‘The Answer’, and a biological stage which consists of the Kaldness Moving Bed™ process – here K1 media is aerated to constantly agitate the media to create the best possible environment for the correct bacteria to colonise.
| Model | Max Flow Recom. L/h | Maximum K1 media capacity |
| 300 | 13000 | 200 Litres |
| 200 | 10000 | 150 Litres |
Complete mechanical and biological filtration in one unit with a small footprint. High biological filtration is achieved via the use of small beads which have a massive surface area. The powerful backwashing ensures that all debris is removed but ensures that the beneficial bacteria is not disturbed.
It is recommended that if used as main filtration it is used in conjunction with a vortex or other suitable settlement chamber.
| Model | Maximum Recom. Pond Size (Litres) | Min Flow Rate (Litres) | Max Flow Rate (Litres) | Diameter |
| BM12 | 10000 | 2500 | 5000 | 40 cm |
| BM20 | 16670 | 4169 | 8338 | 50 cm |
| BM35 | 29183 | 5837 | 12507 | 60 cm |
| BM60 | 62535 | 11673 | 20011 | 75 cm |
| BM90 | 75042 | 14175 | 25014 | 75 cm |
After more than two years combing the market in search of a good-looking, effective fluid bed filter that actually worked and at a reasonable price – we gave up!!! And decided to make our own.
| Model | Pond Size (Gallons) | Height (cm) | Width (cm) |
| Nitryter 4000 | 4000 | 100 | 31 |
| Nitryter 8000 | 8000 | 145 | 31 |
Go to the Nitryter page
This unit is a very simple design yet gives extremely good results. Other polishers on the market are very complex and very expensive, Buffy is quite the opposite. You won’t believe the simplicity and you won’t believe the improvement in your water quality and clarity.
The Media Shower has been designed by Koi Keepers and Engineers who’s attention to detail and knowledge of filtration systems has led to a filter that returns excellent results, easy maintenance and is aesthetically pleasing.
Please call to discuss your filtration needs and we
will be happy to advise you on the most suitable filtration system.
We will aim to price match any advertised price on all our products. Please
call for details.