Water lily “sea rose” (Nymphaea Daubenyana): content, reproduction.
Water Lily Family - Nymphaeaceae.
A hybrid plant, various garden forms of which are widespread throughout the world.
It is grown in small artificial reservoirs. The flowers are very beautiful, varied colors. Cultivation in the aquarium is quite possible, but the leaves of this water lily are less beautiful than other nymphaea. A rather large tank with a large surface area of water should be used as an aquarium. The water level should be relatively low (not more than 45-50 cm). In winter, after flowering, the water lily slows down growth.
It is possible to contain “sea rose” in warm and moderately warm aquariums. The temperature of the plant is from 20 to 30 ° C; the optimum is 22-25 ° C. In summer, during the growing season, the temperature can be increased to 26-28 ° C, in winter it is better to reduce it to 20 ° C. Water hardness should be small, below 6 °. In alkaline water, the plant develops slightly worse than in acidic or neutral. To acidify the water, you can add peat extract to the aquarium. Nymphaeum prefers old water, so water can be replaced infrequently.
Lighting should be very bright. The plant is useful in direct sunlight. For artificial lighting, it is better to use fluorescent lamps such as LB and special phytolamps. Their power should be about 0.5-0.6 W per 1 liter of tank volume, or about 2.5 W per 1 dm2 of water surface area. Incandescent lamps should be used for illumination in order to increase the proportion of red-orange rays in the spectrum of illuminators. The daylight hours are preferably 12-14 hours.
For nymphaea, the nature of the soil is very important. It should be nutritious enough, contain a lot of silt, clay, charcoal, you can add a little peat. When growing a "sea rose" in the pool, it is advisable to plant it in separate pots. Pebbles and sand are poured into the bottom of the pot, then a mixture of humus, sod land and sand (in approximately equal amounts), into which the plants are planted. From above, this nutrient soil is covered with a layer of sand and pebbles. It is forbidden to use garden soil, humus, compost in the aquarium as soil, since this causes changes in the chemical composition of water and can lead to fish poisoning. The soil layer in the general aquarium should be at least 5-7 cm, and fine pebbles are best suited as a substrate.
In an aquarium, the plant is most often propagated vegetatively. Young plants are formed in the sinuses of old, floating leaves, which, after the formation of 3-4 leaflets and rootlobes, can be separated and planted in the soil of the aquarium.
The seeds of the water lily reproduce relatively rarely, although this is quite possible. Under favorable conditions, the plant blooms in the summer-autumn period. Flowers can be pollinated with a soft brush. Seeds are sown in a separate bowl with sand covered with water, and kept at a temperature of 25-28 ° C. They germinate in 5-8 days. After the formation of 2-3 leaves, seedlings dive and transplanted into large containers. After the formation of 4-5 large leaves, they can be planted in the general soil of the aquarium or in separate pots.