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Keep up to date with all our latest guides and news from fellow pond owners.

What temperatures does a koi need?

What temperatures does a koi need?

As carp fish, koi are able to adapt to numerous conditions. This also includes the ability to react to the ambient temperature and to control life functions accordingly. Nevertheless, strong fluctuations and extremely high or extremely low values ​​should be avoided -...

Pond Bacteria

Pond Bacteria

A pond can only provide a healthy habitat for Koi if it has functioning biology. The bacteria in the water are primarily responsible for the functioning of the pond's biology. If the pond's biology does not function properly, this can lead to increased algae growth...

Oxygen in you Pond

Oxygen in you Pond

Oxygen in the pond water plays an important role in the Koi pond since an excessive decrease in the oxygen concentration can be fatal for the animals. The optimal content of oxygen in the pond water for Koi is 6 mg / l.  This value is determined by the water...

Algae in Pond

Algae in Pond

In total there are several thousand types of algae so that not only one type of algae can usually be found in Koi ponds. This wide variety of species means that there is no “right” way to solve an algae problem in the Koi pond.  A few years ago, chemical agents were...

Koi Parasite Infestation

Koi Parasite Infestation

Parasites are organisms that live temporarily or permanently on or in another living being (host), feed on it or attack it for reproductive purposes. The parasites can be roughly divided into two groups: tiny single-celled organisms and larger multicellular organisms....

How much do Koi Carp cost?

How much do Koi Carp cost?

The price of a Koi depends on various factors. The price range can vary between a single-digit and a six-digit price. The size of the respective specimen is primarily decisive for the price. A koi that has been raised under the best possible conditions can reach a...

Are Birds a threat to Koi?

Are Birds a threat to Koi?

Koi have numerous enemies not only in the water but also outside, such as birds as predators. Especially predatory waterfowl such as herons and cormorants like to put these fish on their menu. But ducks are also not entirely harmless, as they can bring in all kinds of...

Are Cats a threat to Koi?

Are Cats a threat to Koi?

Garden ponds with fish have a magical attraction for cats. Although the velvet paws can only kill relatively small fish, their sharp claws lead to considerable injuries even in adult animals. Whether your neighbour's tomcat sneaks around the pond or your own house cat...

Koi Basics

Koi Basics

Koi are a special breed of carp (Cyprinus carpio). Koi is the short version of Nishikigoi. Nishikigoi literally means brocade carp from Japanese but the more popular term is Living Jewel. This name has its origin in the pattern and colour of the Koi. These are similar...

Koi Predators

Koi Predators

Regardless of whether they are kept indoors in a pool or outdoors in a pond: Koi are exposed to a wide range of threats from predators. Depending on the age or stage of development of the animals, the type and shape of the given danger vary considerably. - clutch: the...