Giant anubias (Anubias gigantea) – aquarium plant of the genus Anubias (Anubias), family Aroid (Araceae).
In nature Giant anubias grows in Sierra Leone, Guinea, Liberia, Togo and Cameroon. Favorable for it are well-humidified and shady places, along the banks of rivers, streams, lakes, which overflow the banks during the rainy season (during this period Anubias for a long time to be under water).
It is the largest representative of the genus Anubias. On sale is extremely rare.
Anubias the giant – large leaf plant, can grow to a height of more than a meter. The stalks are long (up to 80 cm) and thick. Leaves are dense, saturated green color, can be various forms from spear-shaped to tripartite.
Leaf length up to 30 cm. Rhizome creeping, with a thickness of 1.5 to 3.0 cm., Can hold about 35 leaves on itself.
It blooms from February to April.
For content Anubias the Giant best fit tropical aquarium large sizes (or alternatively in a wet greenhouse). Optimum water parameters content: hardness 2-15s, pH 6.0-7.5, temperature 22-28 ° C. Prefers clean fresh water, so good is needed filtration and weekly water changes (in the old and dirty water on the leaves may appear holes).
This aquarium plant loves scattered lighting. It is better to use fluorescent lamps (at the rate of 0.3 W / liter of volume) or matte incandescent lamps.
Also should be sheltered from direct sunlight. Duration of daylight should not be less than 12 hours. Anubias the giant – soil rooting plant, should be planted in such a way that the thick rhizome (rhizome) is not buried with soil and located on the surface.
It is only necessary to bury the thin roots that leave it from the rhizome, otherwise the rhizome will rot. The plant grows very slowly (only 2-3 leaves grow per year).
Does not like frequent transfers. It is better to place in the background of the aquarium.
Breeding (breeding) Anubias the Giant occurs by dividing rhizomes (rhizomes), from which pieces with 3-5 leaves are separated. Leafless rhizome fragments are left to float in water until the leaves appear and the roots are formed.
For young plants it is not recommended to use a soil with a high content of organic substances, otherwise the root system develops very poorly.