Wolffia arrhiza – useful floating spheres

In ponds and quiet backwaters, you can see an amazing plant that at first glance you would not even recognize as a plant. This is rootless wolffia — tiny floating green balls, the size of a pinhead. It is considered the smallest flowering plant in the world and resembles a scattering of floating grains or green caviar.

At first glance, it is striking. It is a huge, almost vertical wall that transitions into a narrow moat. Its lines are both frightening and alluring. Every element here requires perfect technique, flawless board control, and complete self-control.

The name “tonina” was given to it by the Japanese, who popularized it in aquarium keeping. It is easy to guess that they were inspired by the city of the same name.

Distribution area

If you decide to use it, carefully monitor the replacement or regeneration schedule. Timely renewal of zeolite is the key to its effectiveness. This will help your aquarium stay clean and healthy, and its inhabitants feel comfortable. The optimal size for an aquarium is a tank with a height of 50 cm or more. It is also possible to keep it in a small aquarium. However, in this case, Mi Oya will be small in size and will be used primarily as a background plant. This type of cryptocoryne grows to form sparse thickets.

Carbonate hardness — 5–11 dKH;

Medium-hard water is optimal for maintenance. In a soft water environment or with strong pH fluctuations, Mi Oya grows worse and sheds its leaf plates. Reducing the overall hardness to 4° and below can stunt the plant's growth.

Temperature — 22–28°C; But it is important to remember that this is not a magic stone for all occasions. It does not replace regular water changes and biological filtration. Its main task is to provide emergency assistance and additional insurance.

Some aquarists consider this plant to be a weed. But with proper care, it can effectively transform the underwater landscape.

General care recommendations:

• Suitable for tropical and moderately warm aquariums.
• The plant easily adapts to the conditions required by other aquarium inhabitants. In winter, it can be kept at 14-16°C.
• Wolffia can be used to shade tanks. If there are shade-loving specimens in the aquarium that cannot tolerate intense lighting, it will protect them from the harmful effects of direct sunlight.
• Combining it with light-loving plants will not benefit the latter.

• The plant can be used as food for aquarium animals. The miniature balls contain a large amount of beneficial elements and vitamins. In addition, they increase the color intensity of African cichlids and goldfish.
• When placed in an aquarium, Wolffia has a beneficial effect on the cleanliness of the aquatic environment. Floating on the surface, it prevents small debris from entering the water. The balls of this plant are covered with a sticky substance that attracts dust.

With the onset of autumn, the leaves of Wolffia bescorneva accumulate large amounts of starch and overwinter at the bottom.

Optimal water parameters

Wolffia, like other aquarium plants, needs a weekly replacement of 30% of the total water volume. It is important that there is a slight current on the surface. Otherwise, a bacterial film appears on the plant, which leads to its death.

Recommended hydrochemical parameters:

The plant can be grown in a wide range of temperatures. Soft, slightly acidic water is preferable for Wolffia. However, it can also be grown in a harsh environment.

Lighting requirements

Like all floating plants, Wolffia bezkornovaya requires intense lighting. However, direct exposure to sunlight is undesirable.

LB-type fluorescent lamps with a power of at least 2 W per 1 decimeter of area are suitable as sources of artificial lighting. The optimal length of daylight hours is 12 hours.

Soil quality

This plant grows on the surface of the water, so soil parameters are irrelevant. Wolffia is suitable for clay, sandy, and loamy soils.

Need for feeding

The plant feels comfortable in an aquatic environment enriched with beneficial elements. It responds particularly well to the addition of lime and nitrates.

Features of reproduction

It reproduces independently throughout the year, except in winter, when it hibernates and sinks to the bottom.

The offshoots leave the mother plant and develop rapidly. In a very short time, Wolffia can fill the entire surface of the aquarium.

Wolfia is a tiny floating plant that looks like green balls on the surface of the water, but is very useful. It grows quickly, purifies water of harmful substances, and serves as excellent food for fish and snails. In aquariums and ponds, it is used as a natural filter and food source, and it also helps to control algae growth by removing excess nutrients from the water. Simple, unpretentious, but very useful — this is what makes Wolffia a real helper in caring for the aquatic ecosystem.

Variations of the name

Wolffia bezkornaya is sometimes referred to as Least Duckweed or Spotless Watermeal in English-language sources.

As you can see, Wolffia is an amazing plant that is easy to underestimate due to its tiny size. These floating green balls are a real natural mini-factory, capable of bringing tangible benefits to aquariums, ponds, and even agriculture.

Its main advantage is simplicity. Wolffia does not require complex care, actively reproduces, and serves as excellent live food for fish, a natural water filter, and shelter for fry. It clearly demonstrates that even the smallest organism can play an important role in the ecosystem.

So if you are looking for an unpretentious and useful plant for your pond, be sure to take a closer look at Wolffia. Perhaps these modest green grains will become your small but faithful assistants in creating a healthy and balanced aquatic world.