Koi Fish Care

Koi fish are colorful varieties of common carp, which are popularly domesticated for ornamental purpose in the garden ponds and fish tanks. They are found all over the world, except in extremely cold regions. If you are looking for beautiful aquarium fish, then koi fish can be your first choice. In fact, the aesthetic value of an aquarium after being supplemented with koi fish is incomparable. However, like any other fish, certain conditions are to be maintained for keeping the koi fish healthy. Let's discuss in brief about the tips for koi fish care.

How to Care for Koi Fish

There is no wonder that many aquarists prefer to keep koi fish, as it is so interesting to watch them swimming. However, taking care of koi fish requires understanding about their basic requirements. As they are marine fish, they need special attention like a correct sized pond or fish tank for free movement, water quality and correct feeding. Hence, prior to purchasing koi fish for your pond, you can gather information regarding their special needs and optimal conditions (temperature level, light conditions) for rearing them.

Water Quality: One of the most important tips for koi fish care is maintaining the water quality. Regulate the temperature, light condition and nutrient concentration (nitrites, phosphates) as per the seasonal needs. The pH range should be between 7-7.5. Installing a pump and skimmer system is a basic necessity prior to introducing koi fish in the koi pond or the fish tank. The water quality should be monitored regularly; you can replace about 20 percent of the tank water at least once in two weeks time.

Feeding: While feeding the koi fish, make sure that you feed the appropriate fish food that are specially formulated for them. Koi fish foods are available in the form of a stick or pellet. Also, the protein content of the foods differ for each fish stages; young koi require higher protein, while older ones can be fed with foods that contain less protein. The amount of foods should be such that they are eaten within a few minutes. Otherwise, koi fish are heavy feeders and can feed excessively. In addition, fallen fish foods may degrade and disturb the water chemistry.

Koi Fish Population: While purchasing the koi fish, make sure that you select the number as per the size of the pond or the fish tank. You can also consider the size of the koi fish that you are opting. On an average, a full grown koi fish can be reared in a water capacity of about 100 gallons. Accordingly, estimate the number of koi with reference to the total water in the fish tank or pond system. An overcrowded system results in an unhealthy water quality and/or environmental condition for the inhabitants.

Koi Fish Disease: In case of any irregularities in the water chemistry or nutrition, koi fish will become inactive and dull. In severe cases, they may become sick due to the bacterial infections. Diseases may also result from the introduction of other diseased fish or damaged plants. You can check for occurrence of bacteria on the underside of the belly. In case if you find any sick koi fish, separate it from the rest of the population and change the water as soon as possible, so as to prevent further spreading of the disease.

Well! This is in brief on how to care for koi fish. Follow above tips to take proper care of koi fish. Koi fish can survive up to 40 years, provided that the right environmental conditions are maintained. Though it requires patience and continuous efforts to keep koi fish in the aquarium, the satisfaction of watching them playing is worth taking up the hurdles.