Anubias barteri var. angustifolia, the Spearleaf Anubias, is a popular aquarium plant due to its durable nature and attractive look. While often referred to as Anubias afzelii, this is actually a different species. Native to West Africa, this species thrives in the shaded, slow-moving waters of rivers and streams, making it well-suited to a variety of freshwater aquarium setups.
Anubias barteri var. angustifolia is characterised by its long, thin, and lanceolate leaves. This is one of the larger Anubias species, with elegant narrow leaves which can grow up to 30 cm in length. These leaves are typically dark green, tough, and resilient, making them less likely to be damaged by herbivorous fish. The plant's robust nature and slow growth rate make it an excellent choice for low-maintenance aquariums. It can tolerate a wide range of water conditions, including varying pH levels, hardness levels and temperatures between 12-32°C.
This species is particularly well-suited to low lighting conditions, though it can also grow in higher light levels. It is important to avoid direct, intense light, which can cause algae to grow on its leaves. Anubias barteri var. angustifolia does not require CO2 injection, although it can benefit from it, resulting in healthier and more vigorous growth.
When planting Anubias barteri var. angustifolia in an aquarium, it is important to avoid burying the rhizome in the substrate as this can lead to rot. Instead, it should be attached to rocks, driftwood, or other decorations in the aquarium. Over time, the plant will anchor itself with its roots, creating a natural and attractive addition to the aquarium landscape. The plant can also grow out of the substrate if only the roots and not the rhizome are buried.
This versatile plant can be used in various aquascaping styles, from lush, densely planted tanks to minimalist setups where its unique leaf shape can be highlighted. As a mature plant it provides excellent cover and hiding spots for fish and invertebrates, contributing to the overall health and balance of your aquarium.