Anubias is a genus of aquatic and semi-aquatic flowering plants in the family Araceae, native to tropical central and western Africa. They primarily grow in rivers and streams, but can also be found in marshes. They are characterized by broad, thick, dark leaves that come in many different forms.Species can be determined by using mostly characteristics of the inflorescence(flowers).
Reproduction and uses
Anubias are commonly used in aquariums, usually attached to rocks or bogwood. In contrast to most plants, Anubias generally prefer subdued lighting and can also produce flowers underwater. In the aquarium they should be placed in shaded areas, otherwise algae will develop on the leaves.
Anubias are considered by many aquarists some of the easiest plants to maintain, since their light and nutrient requirements are very low and also because herbivorous fish will not eat it. This is why Anubias are some of the few plants which can be used in aquariums with African cichlids and goldfishes.
Reproduction in artificial environments can be accomplished by rizome division or from side shoots. The rizome must always be above the substrate in order to survive, otherwise it will rot and the plant dies. It is also possible to propagate Anubias by seed
The natural growth rate of all species in this genus is rather slow. Usually, they produce a leaf every 3 weeks, or even slower. Unfortunately, these are also among the few plants that do not respond to CO2 addition.
Anubias can best be grown emersed (above water). For this reason they may be used in paludariums.
Anubias barteri var. nana
Synonym: Anubias nana
Dwarf, creeping, with heart-shaped leaves
Leaf-stem: up to 5 cm long
Leaves: up to 6 cm long and 3 cm wide
Height in aquarium: 5 - 10 cm
Optimal conditions:
Temperature: 22 - 27 °C
pH: 5.5 - 9.0
Water hardness: 3 - 10 dGH
Usual growth rate: one leaf every month or so