Duckweed (Lemna minor)

Duckweed is a fast-growing floating aquarium plant that forms a natural green cover across the surface of the water. This tiny floating plant is widely used by aquarists for improving water quality, providing natural shade, and creating a more natural environment for fish.

Duckweed is especially useful in breeding tanks, shrimp aquariums, and planted tanks, where it helps absorb excess nutrients and provides cover for fry.

Its rapid growth also makes it a great natural food source for many fish species.

At N8 Aquatics, our duckweed is grown in established aquariums and is ideal for adding natural floating plant cover to your aquarium.

Why Aquarists Use Duckweed

Duckweed is popular because it provides several benefits to aquariums:

• absorbs excess nutrients from the water
• helps reduce algae growth
• creates natural shade for fish
• provides shelter for fry
• acts as a natural biofilter

Many aquarists use duckweed in breeding tanks to help young fish feel secure while improving overall water quality.

Plant Information

• Scientific Name: Lemna minor
• Common Name: Duckweed
• Plant Type: Floating plant
• Growth Rate: Very fast
• Lighting: Low to high
• CO2: Not required
• Difficulty: Very easy

Care Requirements

Duckweed is one of the easiest aquarium plants to grow.

• Temperature: 18–30 °C
• pH: 6.0 – 8.0
• GH: Very adaptable
• Lighting: Low to high

Duckweed will grow quickly in most aquariums with basic lighting and nutrients.

Aquarium Benefits

Duckweed helps create a more natural aquarium environment by:

• reducing harsh lighting in the tank
• absorbing nitrates and excess nutrients
• providing shelter for fry and shrimp
• supporting micro-organisms that fish may graze on

Because it grows quickly, it can also be harvested regularly to help maintain water balance.

Best Aquariums For Duckweed

Duckweed works well in:

• breeding tanks
• fry grow-out tanks
• shrimp tanks
• planted aquariums
• nano aquariums

Many rainbowfish, livebearers, and other small fish appreciate the surface cover it provides.

Why Buy Plants From N8 Aquatics

• Healthy aquarium-grown plants
• Ideal for planted and breeding aquariums
• Maintained in stable aquarium conditions
• Ready to introduce to your tank

Our plants are grown alongside our aquariums to ensure strong, healthy growth.

Pickup Information

N8 Aquatics currently operates as a local pickup-only breeder and aquarium plant supplier in Central Queensland.

Orders are collected by appointment after purchase confirmation.

Important

Duckweed is a fast-growing plant and can spread quickly under good conditions.

Regular removal may be required to control growth depending on aquarium lighting and nutrient levels.