Medakas are fascinating small rice fish that are becoming increasingly popular with pond enthusiasts in the Netherlands. These Japanese fish are not only beautiful to look at but also have specific needs when it comes to their habitat. A well-designed pond makes the difference between survival and true thriving. In this article, I'll take you on a journey through pond design specifically for medakas, so your fish can fully enjoy their outdoor habitat.

Why Medakas deserve a special pond

Medakas are special fish with unique characteristics that require a well-considered approach. Unlike koi or goldfish, which are often kept in large, deep ponds, medakas originate from shallow rice paddies and calm streams in East Asia. Their natural habitat consists of areas with abundant vegetation, calm water, and ample sunlight. We attempt to recreate these conditions in a pond specifically designed for them.

A key reason why medakas require a custom-designed pond is their small size. These fish grow to only 3 to 4 centimeters, making them vulnerable to larger pond inhabitants and predators. In a standard pond with larger fish, they risk being overlooked during feeding, or worse, becoming prey. Furthermore, medakas swim primarily at the surface, which places specific demands on pond depth and the design of the upper water layer.

Medakas also prefer calm water conditions. While many pond fish benefit from powerful filters and waterfalls, strong currents can be stressful for these small rice fish. They thrive in an environment where they can swim calmly, hunt for insects near the surface, and display their natural behaviors. A specially designed medaka pond takes all these aspects into account and creates an ideal habitat where your fish stay healthy and active.

The ideal pond design for your Medakas

The foundation of a good Medaka pond begins with the right size and Depth. an ideal pond For medakas doesn't need to be extremely Deep—in fact, a depth of 40 To 60 Centimeters is often sufficient. what Is important, however, is the surface area: the larger the water surface, the more oxygen there is and the more swimming space your fish Will have. a pond of at least one to one and a half square meters is recommended For A small group of medakas. also, ensure Shallow areas of about 20 centimeters where the sun can Warm The water properly—medakas love these warm spots!

Aquatic plants are absolutely essential in a medaka pond and fulfill multiple functions simultaneously. Floating plants like waterweed, hornwort, and duckweed provide shade and hiding places, while also helping to purify the water. Medakas like to use fine-leaved plants as spawning grounds, with the females attaching their eggs to the plants. Consider plants like cabomba, elodea, or Japanese water lily. Provide a good mix of floating, submerged, and shoreline plants, but also leave plenty of open water so your fish can swim freely and you can observe them clearly.

The technical aspects of your medaka pond require a subtle approach. A gentle filter is sufficient—think sponge or undergravel filter that provides biological filtration without creating strong currents. Some medaka enthusiasts even opt for a natural balance without mechanical filtration, letting plants and bacteria do the work. Regarding decoration, choose natural materials like smooth stones, driftwood, and clay pots that provide additional hiding places. Avoid sharp objects and ensure that any decorations mimic the natural look of a Japanese pond. A protective net over the pond is recommended to protect your medakas from herons and cats, which consider these small fish an easy meal.

A well-designed pond specifically for Medakas offers these beautiful rice fish the perfect environment to thrive. By considering their natural habitat—shallow, calm water with abundant plants—you can create a touch of Japanese rice paddy atmosphere in your own garden. With the right size, plenty of aquatic plants, and a well-thought-out approach to filtration and protection, you'll be amazed at how active and colorful your Medakas can be. Take the time to carefully design your pond, and you'll be rewarded with a living work of art that you can enjoy endlessly!