Water parameters
Temperature8–24°C
pH6–8
General hardness (GH)4–20 dGH
Recommended range
Overview
Although star duckweed is a relative of common duckweed, it is a species with a different appearance and way of life. Its leaf-like bodies are 6–10 mm long, lance-shaped, translucent and short-stalked. New bodies grow out at right angles from both sides of the parent body and stay attached, forming criss-crossing, star-like chains. These chains drift not on the surface but just below it; for this reason it does not cover the surface completely and cut off the light.
Planting and Placement
It is not planted; it is placed in the water. In calm areas without current it gathers just below the surface.
Care and Fertilization
- Temperature: It likes cool water; above 24°C it weakens. It is suitable for coldwater aquariums and ponds.
- Light: Moderate.
- CO₂: Not required.
- It provides hiding places for shrimp and fry. It reproduces as the chains break apart; remove the excess with a net and do not throw it into natural waters.
Propagation
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Common Problems
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Hobbyist notes
Things you won't find in books, learned by trial and error. The most helpful ones are on top.
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Change history and contributors
- Page created · October 16, 2026