Duckweed (Lemna Minor) for Sale | Floating Aquarium Plant

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DUCKWEED - LEMNA MINOR (Golf Ball)
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Duckweed (Lemna Minor) is one of the fastest-growing floating aquarium plants, known for its tiny green leaves and powerful ability to absorb excess nutrients. This easy, beginner-friendly plant is perfect for shrimp tanks, fry tanks, and reducing algae in freshwater aquariums.

Duckweed Care Guide

  • Lighting: Low to high
  • Growth Rate: Extremely fast
  • CO2: Not required
  • Placement: Floating (no planting needed)
  • Water Flow: Low preferred
  • Temperature: 65–82°F

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Duckweed works by floating freely on the water surface, where it absorbs nitrates and other dissolved nutrients directly from the water column. This rapid nutrient uptake helps stabilize water conditions and limits unwanted algae growth. What makes Duckweed different is its extremely fast reproduction rate and minimal care requirements. It is best used in established freshwater aquariums, outdoor tubs, or breeding tanks where surface coverage, nutrient control, and natural shade are beneficial. With regular thinning, Duckweed remains an effective and natural addition to balanced aquatic systems.

Why Choose Duckweed – Lemna minor (Golf Ball Size)?

  • Fast-growing floating plant ideal for freshwater aquariums

  • Absorbs excess nitrates and phosphates, improving water quality

  • Provides natural shade and reduces harsh lighting

  • Encourages natural behavior in fish and shrimp

  • Excellent supplemental food source for herbivorous fish

  • Helps limit algae growth by competing for nutrients

  • Creates a natural, pond-style aquarium appearance

  • Extremely easy to maintain, even for beginners

  • Promotes microfauna growth for fry and shrimp

  • Ideal for breeding tanks and low-tech setups

Feeding & Tank Requirements

  • Requires a cycled freshwater aquarium

  • Thrives in low to moderate lighting conditions

  • Suitable for shrimp tanks, community tanks, and fry tanks

  • Prefers calm water with minimal surface agitation

  • No substrate required as it floats freely

  • Benefits from nutrient-rich water or liquid fertilizers

  • Regular thinning recommended to prevent full surface coverage

  • Compatible with most peaceful fish and invertebrates

Specification

Details

Product Name

Duckweed

Scientific Name

Lemna minor

Common Name

Duckweed

Portion Size

2oz portion cup

Plant Type

Floating plant

Care Level

Beginner

Growth Rate

Very fast

Lighting Requirement

Low to Moderate

CO₂ Requirement

Not required

Temperature Range

15–30°C

pH Range

6.0–8.0

Water Hardness

Soft to moderately hard

Tank Size

Suitable for all freshwater aquariums

Placement

Surface

Propagation

Natural division

Compatibility

Fish, shrimp, snails

Q: Is duckweed suitable for beginners?

A: Yes. It is one of the easiest aquarium plants to grow and maintain.

Q: Will duckweed take over my aquarium?

A: It can multiply rapidly, so regular removal is recommended to control growth.

Q: Does duckweed require special lighting?

A: No. It thrives in low to moderate lighting conditions.

Q: Can duckweed be used in shrimp tanks?

A: Yes. It provides shade, shelter, and supports micro-organisms shrimp feed on.

Q: Is duckweed safe for fry?

A: Yes. It creates cover and encourages infusoria growth for fry.

Q: Does duckweed help with water quality?

A: Yes. It absorbs excess nutrients such as nitrates and phosphates.

Q: Can fish eat duckweed?

A: Yes. Many fish species graze on duckweed as a natural food source.

Q: Will surface agitation affect duckweed growth?

A: Yes. Strong water movement can slow growth or push it underwater.

Q: Does duckweed need fertilizers?

A: It benefits from nutrient-rich water but usually grows well without added fertilizers.

Q: Can duckweed survive outdoors?

A: Yes. It is commonly used in outdoor ponds in suitable climates.

Q: How do I control duckweed growth?

A: Manually remove excess plants during regular maintenance.

Q: Is duckweed compatible with all fish?

A: Yes, though strong surface-dwelling or plant-eating fish may reduce coverage.

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