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    Echinodorus osiris Rataj

    Echinodorus osiris Rataj


    Origin / Breeder : heterotypic synonym of: Echinodorus uruguayensis Arechav.

    Synonyms: Echinodorus aureobrunneus

    Echinodorus aureobrunensis

    Origin: Brazil Height: 25 - 50 cm Width: 20 - 30 cm Growth rate: Medium Difficulty: Possible lighting: Temperature: 15 - 28 °C pH: 5.5 - 8.0 CO2 input: 3-5 mg/l Echinodorus osiris originates from the waters of Brazil, reaches a height of 50 cm and a rosette width of 20-30 cm This plant used to be known as Echinodorus rubra. It is one of the most beautiful large aquatic plants and forms large, spreading bushes. Due to its decorative properties, the plant constantly attracts the attention of aquarists and aqua designers. Large specimens look good in large aquariums with a volume of 200-300 liters. Echinodorus osiris The most favorable water temperature for Echinodorus osiris is 22-26 °C, hardness 4-16, acidity pH 6.8-7.5. The plant tolerates a short drop in temperature to 15 °C well. Regular water changes are necessary, at least 20 % of the aquarium volume. Echinodorus prefers bright light (0.25 watts per liter of water) for 10-12 hours a day. If there is insufficient light, the plant begins to ache and its leaves become smaller. The red color of the leaves becomes vivid with high light intensity. By varying the light intensity and its spectral composition, it is possible to change the color of the plant's leaves from brownish-red to dark green shades. Moderately silty soil is best suited for Osiris, with sufficient nutrients. The roots of the plant can rot in heavily silted soil. An adult plant makes no demands on the quality of the substrate, it roots well in both coarse river sand and coarse pebbles. When planting in new soil, it is recommended to place a lump of clay under the roots. With insufficient soil nutrition, the new leaves of Echinodorus will turn pale, especially if there is a lack of iron salts in the water. Iron vitriol is added 1-2 times a month at a rate of 10-20 mg per 100 liters of water. Under aquarium conditions, Echinodorus osiris reproduces vegetatively and young plants are formed both on the main rhizome and on the flowering shoot (after flowering). The flower arrow is pressed to the ground after flowering, whereupon a new plant is formed on it. It can only be separated after the formation of 4-5 large leaves on it. However, Echinodorus osiris Echinodorus is best propagated by shoots on the rhizome. Such daughter plants not only do not impair the development of the mother bush, but also root much better in a new location. Echinodorus osiris is not eaten by herbivorous fish. Also suitable for keeping in paludariums.

    1. 1.0 1.1 1.2 1.3 Roman Trifonov, Moskau Aquarium Pflanzen