Hydrocotyl whitehead (Hydrocotyle leucocephala) or, as it is called, Whitehead – an aquarium plant of the umbrella family .
In natural conditions Hydrocotila Bald dwells both in standing and flowing waters of the tropics of South America.
Whitehead is a long-stem plant with round-shaped light green leaves (leaf diameter up to 4 cm), about 50 cm high, fast-growing and unpretentious to the conditions content. Feels comfortable hydrocola white-headed in warm tropical aquarium.
The plant looks best in the background aquarium. Planted in the ground quickly grows to the surface of the water and begins to climb along it, creating a shadow below the growing plants. In this case, to avoid unnecessary shading, the resulting carpet must be regularly thinned out.
Hydrocobala Bald can also contain, not rooting, floating in the water column. So in her bush fry aquarium fish will take refuge.
Hydrocotyl whitehead specific water or volume requirements aquarium does not impose. Optimum for growth aquarium plants there will be water at a temperature of 22-28 ° C. Active reaction and water hardness do not affect plant growth – hydrocola white-headed feels good in both hard or soft, so acidic or alkaline water.
It is recommended to make a periodic water change, otherwise the plant is degraded in the long-changing, old water. The composition of the soil also does not matter.
The only thing for which strict requirements are imposed is the conditions aquarium lighting. With artificial lighting, fluorescent lamps of type LB are used, the power of which is calculated based on the volume of the aquarium (0.5 W / l), or incandescent lamps whose power is three times larger.
But in the second case, the lamp must be used with caution – the upper leaves of the plant floating on the surface can get burned. Light day for thyroid whitehead must be at least 12 hours.
It should be remembered that at the slightest shading aquarium plant starts to hurt and may even die.
Hydrocotyl whitehead propagates, as do most stem plants, by grafting. Even from a small cutting with one leaflet under favorable conditions it is possible to get a new plant.
To breed thistle bald can be as in paludarium conditions, and fully immersed in aquarium. When transferring plants from aquarium in paludarium conditions no prior adaptation is required. But in the case of growing plants in surface conditions when placed in aquarium it must be left floating for some time on the surface.
And only after a few young leaves appear, it is possible to dive and land in the ground.