Pistia
The Pistia genus appears to contain only one species. It is a floating plant
which grows rather slowly, but it is of great interest to aquarists.
Pistia stratoites
The leaves of the water lettuce have a velvety sheen. This plant needs strong
lighting to grow and for seedlings to form on the runners. It provides an aquarium
with shade and a refuge for fry. It is badly affected by drops of water formed by
condensation on the lid of the tank. Diameter: 5-6 cm.
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