Duckweed

Duckweed

Lemna minor

Origin: Cosmopolitan
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Description

Overview: Duckweed is the smallest and fastest-growing of all floating plants. It is famously difficult to get rid of once introduced, as it can reproduce from even a single tiny leaf. However, it is an amazing nutrient sponge and can help keep even the most overstocked tanks clean. It is a great food source for many types of fish, including goldfish and cichlids.

Maintenance Score

5/10Moderate Difficulty

Visual Impact

2/10Subtle

Growth States

Available FormEmersed / Submersed
Transition DifficultyMedium
Melt RiskModerate
Adaptation Time14 Days

Requirements

CO2 LevelNone
Growth RateFast
Light LevelLow
FertilizerMedium
Max Heightn/a cm
ExperienceBeginner

Care & Design

Trimming

Biweekly: Trim tops and replant healthy stems as needed.

Propagation

Cuttings, runners, or division depending on species.

Recommended Styles
jungleblackwaterbiotopepaludarium

Duckweed may show different leaf size and texture between emersed and submersed growth.

Common Issues

  • Melt during transition
  • Algae on older leaves

Water Parameters

Temperature

22–28°C

pH Range

6–7.5

Hardness (GH)

2–12 dGH

Physical Traits

Leaf Shape

oval

Texture

medium

Growth Pattern

stem

Color Profile

green

Placement & Sensitivity

Placement Depth

any

Grouping Size

4+

Algae Sensitivity

moderate

Nutrient Sensitivity

moderate

Density

moderate

Leaf Descriptions

Emersed Form

Emersed leaves of Duckweed are adapted to air growth and typically differ in thickness/shape.

Submersed Form

Submersed leaves of Duckweed are optimized for underwater flow and nutrient uptake.

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