Gouraud's shading

Egyptian Nymphaea (Nymphaea lotus L.) - a species of plant belonging to the family Nymphaeceae. Commonly known under common or commercial names as tigers lotus, egyptian lotus or egyptian water lily. Occurs in the wild state of Africa and Romania. As introduced species, it has spread in Florida in the USA and in some countries of Central and South America (Costa Rica, El Salvador, Panama, Guiana, Venezuela, Brazil, Colombia). In addition, as an ornamental plant, it is grown in many countries around the world.

Morphology sort Water plant, perennial. The leaves grow out of the rhizome, blooms above the surface of the water. It reaches a height of 20-80 cm, width - 25-60 cm. Leaves It has two types of leaves: underwater and floating. The underwater is smaller, with a wide, oval-shaped shape, with an oval shape, with slightly wavy edges. Leaf coloring is variable, depending on the illumination. Grows in three color variants: green, pale red and intensely red. All varieties have mottled leaves, differing in color and number of spots. Leaves floating on the water surface rarely appear in aquarium cultivation. They are round, with cut off, serrated edge. rhizome The bottom of the tanks. Leaves, flowers and leaves grow from it. flowers On long peduncles, they protrude above the surface of the water. The outer leaves of the periwinkle (4 ovates, 4 narrow white), the inner white, less lightly pink, numerous. Fruit Handbag containing numerous small seeds (sometimes over 1000). They germinate almost immediately after falling to the bottom of the tank. Biology and ecology

In nature, it grows in pure, warm and slightly acidic waters. Flowers open at night, close in the morning, have a pleasant aroma. They are self-pollinating and under favorable conditions, such as proper humidity, self-pollination occurs, after which the flower submerges in water and ripens there. Application Lotus tiger in the aquarium Cultivation Requirements Heat water 24-28 ° C, soft or medium - about 6-8 ° n and pH 6.5-7. Light, gravel, permeable substrate. Lighting is quite intense. Does not like to stay in the shade, then its leaves degenerate, the leaves become smaller, less colored, over time excessive shading leads to death of the plant. Cutting offshore and submerged leaves, causes the growth of underwater leaves. Fertilization should be regular but not abundant, because too much dose causes greater growth and consequently, the plant goes upwards, and on the surface its leaves are weak, easily damaged. Too much fertilization can cause the plant to blossom, on the surface of the water then a flower appears, which develops in the evening or at night after the light goes out for several days, closing in the light. If the plant is to blossom, leave floating leaves (surface). Prolonged release of the sap and the plant's ability to blossom on the surface can lead to its weakening and even death. Multiplication It occurs through decay, which can be cut off only after a good development and the rooting of the young plant. Participation in culture Bibliography

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