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Utricularia graminifolia

Bonus content from the Aquarium Fish International June 2012 column The Aquabotanist.

By Stephen G. Noble | March 28, 2012

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AFI Bonus contentThese and other bladderworts have the “bladderwort” moniker due to their air-filled bladders. The bladders were originally thought to be buoyancy devices until the astonishing discovery that they are actually food traps. Utricularis graminifolia is identified by its silky, grasslike leaves. It develops a gorgeous blue flower with pink overtones. It will produce a grasslike mat appearing like a lawn. 

Habitat: Southeast Asian swamps and shallow streams
Water: pH 6.0 to 7.0
Temperature: 60 to 82 degrees Fahrenheit
Lighting: Moderate
Substrate: Sand
Specific Nutrition: Minute aquatic organisms
Size: Leaves reach a height of about 1 inch.
Propagation: Via runners
Position in Aquascape: Foreground preferred, but any open area that receives light is suitable.
General Care: Utricularia graminifolia is the most common carnivorous plant found in the aquarium hobby. There are two forms available (aquatic and terrestrial), so check prior to purchasing. The aquatic type might require CO2 injection if grown completely submerged. The terrestrial form is ideal for a paludarium.

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