ABC PLANTS - Spirodela polyrhiza (Duckweed)
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Super easy floating plant that grows in any aquarium. Giant duckweed is extremely useful as a natural biological filter that quickly removes nitrogenous waste and oxygenates water. It's extensive suspended "roots" form a floating haven for small fry and shrimp. A fantastic choice for a low-tech setup or for breeders.
Difficulty: Very Easy
Size: 1+ cm frond width
Position and Usage: Floating plant - great natural hiding spot and food source for small fish or shrimp
Growth rate: Fast
Lighting: 1/5 – 5/5
Water Conditions: 15 – 30°C; pH of 6.0 – 8.0
CO2: Not required
Propagation: Asexual budding; sexual reproduction through seeds (rare)
Emersed growth: Does not grow emersed - needs to be floating on water. Can be used in Vivariums and Paludariums where there is water.