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Duckweed
Lemna minor
The smallest flowering plant — a tiny floating fern that doubles its coverage in days. Excellent nutrient absorber but extremely difficult to remove once established. Use with caution.
Care Parameters
Light
Low
CO₂
None
Growth
Very Fast
Difficulty
Beginner
Placement
Floating
Temperature
15–30°C
pH
6–8
Propagation
Vegetative division; reproduces extremely rapidly.
Suitable Equipment
4
Common Problems
3B
Black Beard Algae (BBA)
A stubborn, dark algae that grows in tufts on plants, decorations, and equipment. Often indicates fluctuating CO₂ levels. Removed by spot-treating with hydrogen peroxide.
algaeP
Plant Leaves Melting
Leaves turn transparent, mushy and fall apart shortly after planting.
plantsG
Green Water Algae Bloom
Water turns bright green from suspended single-celled algae.
algaeRelated Articles
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