Koi Ponds: Koi Environmental Needs, Husbandry, and Care

Via : Unloved pet fish are flooding Australian waterways, introducing diseases and bullying native fish. In large waterways, goldfish and koi can grow to up to 10 times the size of native species and compete with them for habitat and food.

Learn more about the koi fish, including where to find koi and what type of habitat your koi will need to survive, below.

Koi are , social fish that enjoy living in pairs or groups. When considering whether or not to add a new fish to an existing habitat, always make sure that their environmental and nutritional requirements are the same as the current fish, and, in the case of adding a koi fish to an existing pond, make sure that the size of your pond is large enough to support a full-grown koi. Koi are truly friendly and will not eat other fish or fight with each other. If you are mixing species, make sure the same can be said for the other types of fish in your pond before adding koi. Not only are koi friendly to other fish, but they may also come up to the surface to say hello when they see their owner or when it’s time to eat. Some koi even like to be pet and will come to the surface for a little pat on the head.

What is a Koi's natural habitat

“They just became too big for the habitat,” confirmed Phipps. “So all of the remaining fish were re-homed to a Koi habitat in Cotati.” You can also tell goldfish from koi by their habitat. This method is not surefire, but it's a good starting point. Generally, people keep goldfish in aquariums or bowls, though aquariums suit them better. Koi thrive in ponds at least a meter deep. However, some people do keep goldfish in ponds. At the same time, a huge aquarium could hold koi, particular juveniles. Pet shops often sell very young koi from fish tanks.

Koi fish is domesticated version of common carp

Clean, clear water is a must-have in any water feature. It allows you to see those gorgeous koi and goldfish swimming below the surface. It shows that you have excellent water quality, with plenty of oxygen for your pond’s inhabitants—including the microscopic ones, like beneficial bacteria. And it puts off no offensive odors, which means you can host shindigs by your water garden without scaring off your friends.

Koi are docile, social fish that enjoy living in pairs or groups


Greg, Ed, Brian and Chris work to install a giant pond in Tony and Shari Romano's backyard. Their koi have grown obese from the incorrect diet that Tony and Shari have fed them, so Greg and the crew need to design the perfect backyard habitat with a koi treadmill so these fish can lose their belly fat. Meanwhile, a new client calls Greg to fix her current pond because it's not deep enough to support a certain breed of fish that she is hoping to buy for her children.Koi fish can grow really, really big. The size they can grow to is determined by various factors, especially the environment they live in. If their habitat is well maintained, koi can grow quite large and also a lot healthier, living anywhere from 25 to 30 years. Exceptional koi can live for well over 100 years and the foundation on which everything else is built is a proper-sized pond.