Eichhornia crassipes, "Water hyacinth", is a distinctive
floating plant that is suitable for indoor ponds and large open aquariums. It
is also used as a summer plant in European garden ponds. Its size depends on
the nutrients in the water and the light intensity. In open aquariums
containing pure water it forms decorative miniature plants. It is now
distributed all over the tropics and has become a menace, covering lake
surfaces. In favourable conditions it forms an amazingly beautiful
hyacinth-like flower.
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