How Big Should A Duckweed Growing Vat Be?

Large Pond Weed Control Hydrosphere Water Gardens
Large Pond Weed Control Hydrosphere Water Gardens from

With the growth of the aquaponic movement, more and more people are turning to the water-based agriculture to produce their own food. One of the most popular aquaculture systems is the duckweed growing vat. Duckweed is a small floating plant that produces edible leaves and is used in many cultures as a food source. But, how big should a duckweed growing vat be?

In order to answer this question, it is important to understand the size of duckweed. Duckweed is a small plant, usually no bigger than a fingernail. It grows quickly, and can reach up to 2 inches in size. This means that a duckweed growing vat needs to be large enough to accommodate the growth of the duckweed. The size of the vat should be at least 2 square feet.

Choosing the Right Container for Duckweed Growth

Once you have decided on the size of the vat, you need to choose the right container for duckweed growth. The best containers for duckweed growth are those that are shallow, have plenty of light, and have a wide surface area. Some of the most common containers used for duckweed growth are plastic buckets, aquariums, and plastic-lined containers.

When choosing a container, it is important to make sure that it has enough space for the duckweed to grow. The container should be at least 8 inches deep and should have a surface area of at least 1 square foot. The container should also have plenty of light, as duckweed needs plenty of light to grow.

Creating the Right Environment for Duckweed Growth

Once you have chosen the right container for duckweed growth, you need to create the right environment for the duckweed to grow. Duckweed needs plenty of oxygen, so it is important to make sure that the container is well aerated. You can do this by adding an air stone or pump to the container. You should also make sure the water is at the right temperature, which should be between 65 and 75 degrees Fahrenheit.

In addition to providing the right environment for duckweed growth, you should also make sure to feed the duckweed. Duckweed is a fast-growing plant, and it needs plenty of nutrients to stay healthy. You can feed the duckweed with a variety of fertilizers, such as fish meal or compost tea.

Harvesting Duckweed

Once the duckweed has grown to its desired size, it is time to harvest it. Duckweed can be harvested in a variety of ways. The most common method is to scoop it out of the vat with a net. It is important to be careful when harvesting the duckweed, as it can easily be damaged.

Once the duckweed has been harvested, it can be used in a variety of ways. It can be used as a food source for fish or other animals, or it can be used to make compost tea. Duckweed can also be used as a fertilizer for plants, as it contains a high amount of nitrogen.


In conclusion, a duckweed growing vat should be at least 2 square feet in size and should be in a container that is 8 inches deep. The container should have plenty of light and should be well aerated. It is also important to feed the duckweed and to harvest it carefully. With the right environment and care, duckweed can be a great addition to any aquaponic system.

Previous Post Next Post