Rotala round leaf (Rotala rotundifolia) or Rotala indian (Rotala indica) – aquarium plant families Derbennikovye (Lythraceae).
In nature Rotala round leaf lives in tropical waters of Southeast Asia. However, it is found in Transcaucasia.
Rotala round leaf at content not whimsical. This plant feels great in a wet greenhouse, and in aquarium.
The long round stem grows vertically from the rhizome and reaches a height of 25 cm. The leaves are located on the stem in pairs.
Under the water painted in juicy green color, thin, oblong in shape, up to 1 cm long. Aquarium leaves are rounded.
In bright light, the sheet below is colored red. In connection with the rapidly forming lateral shoots that create the shadow of the lower part of the plant, the stem becomes bare and the shaded leaves fade. It is recommended to thin out thickets regularly. aquarium plants, rejuvenating it, replacing old shoots with young shoots.
Have rotali indian rhizome creeping, branched, with a large number of leaf buds.
There are few among aquarists who contain round leaf. Throughout the year, it grows well.
It is best to place the plant around the perimeter. aquarium, closer to the side walls. Rotala round leaf looks like a big bush much more interesting than individual branches, it goes well with large-leaved plants.
With sufficient light, the color of the leaves becomes red.
Comfortable all rotala indian feels tropical aquarium with a water temperature not lower than 24 ° C. At lower temperatures, the plant stops growing.
Water is suitable for hardness up to 6 ° with a neutral or slightly acid reaction. In alkaline water development rotals slows down, and with a stiffness of more than 12 ° the plant dies. It is necessary to make a regular substitution of 20-25% of the volume of water in aquarium, because with the appearance of turbidity in water, the growth of the plant slows down, and the appearance loses its attractiveness.
For rotali indian need moderately bright lighting. Excessive illumination leads to the formation of algae, which are destructive for the plant; Rotala round-leaved looks faded and weak. Individual lighting is selected taking into account the fact that it tolerates moderate shading.
Under favorable conditions, young leaves of the plant acquire a reddish tint. Incandescent lamps in combination with fluorescent lamps can be used as means of artificial illumination, or illumination can be carried out only by incandescent lamps (in natural diffused light). Light day – at least 12 hours.
Rotala indian – plant, floating in the water. Therefore, its root system in this case is developed weakly. Rotala, planted in the ground, has a more spectacular view.
The plant does not need any additional mineral feed. Planted in the ground receives the necessary substances from the sludge, floating in the water – out of water, but, respectively, it develops somewhat more slowly.
For content and successful breeding rotatum round leaf suitable paludarium or wet greenhouse. Propagated by cuttings or separation of basal shoots. The stalk is planted in the ground filled with water.
In such conditions, surface elastic shoots are formed with leaves of a round shape, glossy to the touch. The plant blooms with small pink flowers. At the same time, air shoots grow very quickly.
For breeding rotala indian High air and water temperatures (26–30 ° C), high humidity and bright lighting are required. The greenhouse plant can be immediately placed in aquarium.
In this case, after a short break, its growth will continue, shoots will be formed already with elongated leaves, characteristic of underwater habitat.