Anubias Hastifolia

Anubias hastifolia is a robust, slow-growing freshwater aquarium plant native to West Africa, highly prized for its unique arrowhead- or spear-shaped leaves and exceptionally tall growth habit. Unlike smaller variants, it is one of the larger species in the Anubias genus, making it a dramatic addition to medium-to-large aquariums. Due to its thick, leather-like foliage, it is incredibly durable and famously cichlid-proof and goldfish-safe, as herbivorous fish cannot easily eat or damage it.

Plant Profile & Specifications

Scientific Name: Anubias hastifolia

Common Name: Arrowhead Anubias / Spear Leaf Anubias

Placement: Midground to backgroundGrowth Rate: Very slow

Max Height: Up to 30–60 cm (12–24 inches) in ideal conditions, though it stays more compact entirely submerged.

Water Parameters: Temperature of 22–28°C, pH of 6.0–7.8.

Core Care & Cultivation Guidelines

Rhizome Exposure: Never bury the thick, horizontal green stem (rhizome) in the substrate. Doing so suffocates the plant and causes it to rot.

Anchoring Methods: Attach the plant directly to hardscape elements like driftwood or rocks. Secure it temporarily using aquarium-safe super glue gel, fishing line, or cotton thread until its roots wrap around the surface.

Low Light Requirements: Provide low to moderate lighting (10–20 PAR). Because the leaves grow slowly and survive for years, high light exposure will quickly cause persistent green spot algae to cover the foliage.

Nutrients & CO2: Supplemental CO₂ is entirely optional, making it perfect for low-tech setups. It primarily absorbs nutrients from the water column; feed it periodically with an all-in-one liquid fertilizer. If leaves begin yellowing, it typically indicates a nitrate or potassium deficiency.

Propagation: Propagate easily by utilizing a sharp pair of aquascaping scissors to cut the horizontal rhizome into separate pieces. Ensure each divided section has at least 2 to 3 healthy leaves attached.

Versatility in Aquascaping

Beyond traditional aquariums, Anubias hastifolia thrives exceptionally well in high-humidity paludariums, terrariums, and ripariums. When grown emersed (roots in water, leaves in the air), its leaf stalks grow much longer and sturdier, making it a beautiful structural element for transition zones between land and water.