In its appearance, this plant resembles an Indian rotala, but in fact, everything is different. Dilipis diandra is an aquarium plant that was imported from North America.
In nature, it grows along the edges of reservoirs, lakes or rivers, and can also grow completely immersed in water.
Feels good in clay soil. Today, many aquarists grow it, even though it is rather difficult.
The plant has a long and powerful stem (in nature grows up to 60 cm) from which many small leaves grow. The width of one leaf is not more than 3 mm, and is up to 3 cm long. In nature, didlis can bloom with small greenish flowers, but in aquarium conditions this is very difficult to achieve.
The roots are poorly developed, but from them new nodules appear from which the processes are obtained. In its appearance didlis resembles a beautiful green bush. The plant has an unusual property, with a good level of illumination, the color of the leaves changes from green to pale red.
Didlis can be grown in aquariums from 40 to 200 liters, in such conditions it grows no higher than 40 cm. The conditions of detention are quite difficult, and all because the plant loves cleanliness and a certain composition of water. Algae does not tolerate contaminated water, while the leaves begin to blacken and fall off. Didlis feels comfortable when the pH level ranges from 6 to 8 with an ode temperature of 21 to 27 C.
Once a week, add at least 30% pure water. In winter, it is recommended to lower the water temperature to 18 C, at this time there comes a period of rest, growth slows down and it lasts up to 3 months. Also, the plant is demanding for light, since in nature it reacts to this factor by changing the color of the leaves. If the light source is at least 0.7 W / L, the leaves become reddish. When there is not enough light, the stem is extended and thinned, and the leaves become pale. Direct sunlight should not be allowed, while the daylight should last from 10 to 12 hours. To create the right lighting, you can use a fluorescent lamp.
Another important factor is the concentration of carbon dioxide, should be from 20 to 25 mg / l. Otherwise, the plant will not grow and soon this will lead to death.
Also, for comfortable growth, properly selected soil will be required. The plant has small and delicate roots, so even small pebbles can cause harm. In addition, didlis takes nutrients not only from water, but also from the ground. But you need to remember that the plant loves cleanliness, so the soil should be appropriate. For this algae, you need to make a two-layer soil, the lower layer should consist of clay, and the upper one of fine sand. In this case, the soil thickness should be at least 3 cm.
Some aquarium fish like to rummage in the ground and accidentally violate the didlis root system, he reacts negatively to this.
The most important condition for growing is a comfortable and stable environment in the aquarium. Therefore, in the new, recently equipped, didlis diandra will not be able to take root due to the instability of the chemical composition of water.
Didlis diandra can propagate in several ways, namely shoots or cuttings. The first option is simpler and more efficient, while you need to cut the tip of the shoot by at least 10 cm. In the second case, you need to take the roots and plant in the soil. Even a root without a stem will do.
Subject to all conditions, the plant will grow rapidly, in summer didlis can grow by 10 cm per month. Such activity is most affected by the level of carbon dioxide and light.