Growing Duckweed - Tips And Tricks For Success

How Fast Does Duckweed Grow? Part 1 Beginner's Guide YouTube
How Fast Does Duckweed Grow? Part 1 Beginner's Guide YouTube from

Duckweed is a unique, yet versatile plant that is often used as an ornamental aquatic plant in ponds and aquariums, as well as for its medicinal properties. Despite its small size, it provides a range of benefits to its environment, including providing food and shelter for aquatic animals. It is also a great source of nutrition for fish, as well as a natural filter for ponds and aquariums. Unfortunately, growing duckweed can be quite a challenge, as it is a delicate plant and is highly sensitive to its environment. So, if you’re looking to add duckweed to your pond or aquarium, here are some tips and tricks to help you succeed.

Choose the Right Environment for Growing Duckweed

Before you begin growing duckweed, you need to make sure that you have chosen the right environment. Duckweed thrives in a shallow, warm, and still water environment. It is important to keep the temperature between 65-80°F (18-27°C) and the pH level between 6.5-7.5. The water should also be relatively shallow, as duckweed tends to float on the surface of the water. Additionally, it needs plenty of light in order to grow, so make sure that the pond or aquarium is in a sunny area. Finally, it is important to make sure that there are no other aquatic plants in the pond or aquarium as duckweed can easily be outcompeted by other aquatic plants.

Provide the Right Nutrients for Duckweed

In order for duckweed to grow properly, it needs to have the right nutrients in the water. Duckweed needs nitrogen and phosphorus in order to grow. Nitrogen helps the duckweed to grow and produce chlorophyll, while phosphorus helps the duckweed to take up other nutrients. You can provide these nutrients to the duckweed by adding an aquarium fertilizer or by adding fish waste to the pond or aquarium. Additionally, duckweed needs plenty of carbon dioxide, which can be provided through the air or through using an aquarium bubbler.

Harvest Duckweed Regularly

Harvesting duckweed is an essential part of growing duckweed. The duckweed needs to be harvested regularly in order to keep it from taking over the pond or aquarium. This can be done by simply scooping the duckweed out of the water with a net. It is important to make sure that you do not overharvest as this can lead to a decrease in the duckweed population.

Control the Population of Duckweed

It is important to keep the population of duckweed in check in order to maintain the balance in the pond or aquarium. If the population of duckweed gets too large, it can affect the other aquatic plants and animals in the pond or aquarium. To control the population of duckweed, you can either add predators such as fish or turtles to the pond or aquarium, or you can use chemicals to reduce the duckweed population.

Provide Protection from the Elements

Duckweed is highly sensitive to changes in the environment. Therefore, it is important to provide protection from the elements in order to ensure the survival of the duckweed. This can be done by adding a floating cover to the pond or aquarium. This cover will protect the duckweed from the sun and wind, as well as from predators. Additionally, it will also help to keep the water temperature stable.

Keep the Water Clean

Duckweed is sensitive to pollutants, so it is important to keep the water clean in order for the duckweed to thrive. This can be done by regularly checking the water for pollutants such as ammonia and nitrites, and removing any pollutants that are found. Additionally, it is important to avoid overfeeding the fish in the pond or aquarium as this can lead to an increase in pollutants.

Use the Right Planting Technique

When planting duckweed, it is important to use the right technique in order to ensure that the duckweed will thrive. The best way to plant duckweed is to place it in clumps in the water. This will help to keep the duckweed from floating away and will allow the roots to take hold in the substrate. Additionally, it is important to make sure that the water level is not too deep, as this can prevent the duckweed from getting enough light.


Growing duckweed can be a challenge, but with the right tips and tricks, you can be sure to succeed. Make sure to choose the right environment, provide the right nutrients, harvest regularly, control the population, provide protection from the elements, and use the right planting technique. With these tips, you’ll be sure to have a thriving duckweed population in your pond or aquarium.

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