What is so special about koi that makes them only suitable for purpose-built ponds?
Koi are specially selected ornamental carp that are found in an array of colours, patterns and varieties. They can become very tame and make a highly desirable addition to a pond. Koi are more susceptible than other pond fish to developing diseases or health problems so a suitable pond environment must be provided. A purpose-built pond is not entirely necessary to keep koi, but they have particular requirements which larger ponds will accommodate more effectively. 1. Deep ponds (min. 3 feet) with open swimming space. Koi can grow up to 3 feet in length and require the space and depth in which to swim. A deep pond also helps to keep the water quality more stable which helps this very fragile fish. 2. A suitable filter that will handle the amount of waste produced by such voracious feeders.
