Basic black box fish pond filters are ideal for garden ponds up to 5500 litres (1211 gallons) depending on pond size, stocking density either with Goldfish or Koi Carp as a guide please consider the following.
Max pond size 5500 litres with 254 centimetres of Goldfish, min/max flowrate 1300/2700 litres per hour 32mm diameter pipework recommended pump 4000 litres
Max pond Size 2750 litres with 89 centimetres Koi Carp, min/max flowrate 1300/2700 litres per hour 32mm diameter pipework recommended pump 4000 litres
They are supplied complete with one of the most comprehensive media packages on the market. This ensures a very high level of biological and mechanical filtration. Their no-fuss design makes installation simple. They have been designed to enable partial burial if required and are for pump fed systems only. All Mega Black Box filters have the facility to clean out the spray bar to cope with the current trend for dirty water pumps that can handle up to 8 mm solids.