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Introduction to Bubble Bead Filters     

We have been asked numerous times 'Why don't we feature Bubble Bead Filters' ?

Well the answer was - 'until now we could not find one that we felt was suitable and one that was easy to use and one that would also fit in with what we believed our customers were needing and what they would be happy with' ...  we have now found that Bubble Bead Filter that we believe will answer those requirements .... and this is the one we recommend... and we have models to suit ponds right up to volumes of 20,000 gallons.

Bubble Bead Filters

Bubble Bead filters have proved themselves to be the easy maintenance solution in a wide variety of aquatic applications. They are a closed chamber filter containing floating bead media. In normal running, the beads pack into a filter bed that gives both excellent water clarity and highly efficient biological breakdown of wastes.

The versatility of Bubble Bead filters has made them a leading choice for new installations and for upgrades to existing systems. The latest ‘TwinValve’ models also feature a fully automatic backwash as standard, a facility which sets them apart from the competition.

The Bubble Bead Filters Give excellent water clarity and highly efficient breakdown of wastes and
there are thousands of units in use worldwide.


Currently used as the main filter for:

Used on...

Koi ponds

Coldwater systems

Fish holding systems

Tropical systems

Aquacultural re-circulation systems

Freshwater systems

Display aquaria

Saltwater systems
(with minor modifications)

Educational and research facilities

A Few Comments on Bubble Bead Filtration for Koi Ponds....

In ponds where Koi and similar ornamental fish are being kept in any numbers, the need for some form of filtration soon becomes apparent. With their greedy appetites and vigorous browsing nature, Koi soon pollute their surrounds with their wastes and with debris churned up from the pool base. Appropriate mechanical and biological filtration will give both the clarity required for viewing and the clean water necessary to maintain fish health.

The Bubble Bead filter system, with its high ability to remove particles down to 10 micron size1 and high efficiency breakdown of biological wastes2 can achieve this desired water quality either on its own or in conjunction with ancillary filter equipment. The Bubble Bead filter’s simple valve operated backwash process makes maintenance very straightforward and for simplicity this operation can even be automated.

Bubble Bead filters are also ideal to boost fish stock capacity and solids removal in existing Koi ponds where current filters are becoming overloaded, and they can be used in combination with a number of other types of filter (See Appendix Four). Their compact nature and the ability to site them remotely also makes them ideal for retro-fitting in these cases, with minimal disruption to the surrounds of the existing pond.

The Principle behind all Biological Filter Systems

In natural pool systems, the micro-organisms that build up on surfaces and in sediments are able to cope with the wastes from the limited numbers of fish supported. In artificial systems, sediments are usually removed and pools often kept clinically clean. There is little chance of the remaining micro-organisms coping with the wastes from the increased numbers of fish.

To balance the relatively high stocks of fish, the natural micro-organisms that break down fish wastes are concentrated in an external filter system. Water from the pool is re-circulated through the filter bringing in the wastes, oxygen and other nutrients that these organisms feed on. The filter also needs to be able to remove suspended solids to prevent the water from becoming turbid. To prevent the filter itself from becoming clogged by debris, there is some means of removing dirt from the filter. In the simplest ‘box’ filters this has often been achieved with some form of foam pad, though cleaning of such pads can be a messy process and can upset the biological processes that are establishing in the filter.

With browsing fish such as Koi, the sediments are constantly disturbed into suspension, aiding their removal by the filter system. Removal of sediments is usually supplemented e.g. by the addition of bottom drains.




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