This filter & pump system is good enough for koi ponds containing up to 4, 500 of water. The compact filter employs foam cartridges,

The Clear Pond is the 'flagship' pond filter from UK manufacturer Lotus. Compared to the other popular Lotus filters such as the

This pump & filter system is even good enough for koi ponds with a capacity of up to 9, 000 litres. The compact multi-bay box

At last we have found a box filter to satisfy the more discerning goldfish pond keeper, plus it is even good enough for koi (see

This is a perfect solution for goldfish ponds up to 27, 000 litres (6, 000 gallons) & pairs a bestselling filter pump with a

This pump & filter system is even good enough for keeping koi (a maximum size of 18, 000 litres suggested). The compact multi-bay