Continent: North America
Country of origin:
Height: 1-2 cm
Width: 1+ cm
Light requirements: medium-very high
Temperature: 5-26 °C
Hardness tolerance: very soft-hard
pH tolerance: 6-8
Azolla caroliniana is a small floating fern housing blue-green algae
in its leaves. These algae are capable of absorbing nitrogen from the air, which
can then be used by the plant. A. caroliniana has become a menace all
over the tropics, because it covers lakes and deprives the original aquatic
plants of light. Used as nitrogen fertiliser in rice paddies, and as animal feed.
There are several related varieties on the market, with similar appearance. A
decorative plant for open aquariums.
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Back to: Aquatic Plant Index - AC Tropical Fish
Database used with permission. Thanks to Tropica!