Dennerle Bacopa australis – Potted Aquarium Plant

Bacopa australis is a beautiful, fast-growing aquatic stem plant known for its delicate, rounded leaves and vibrant light green coloration. Native to South America, particularly Brazil, this attractive species was discovered by Dennerle during a Plantahunter expedition to the Rio Sucuri in 2010. Its soft, bright green foliage creates a fresh, natural appearance in planted aquariums, providing an attractive contrast against darker green and red aquatic plants. Under favourable lighting conditions, the leaves may develop subtle reddish tones, adding further visual interest. Hardy, adaptable, and relatively easy to cultivate, Bacopa australis is an excellent choice for both beginner and experienced aquascapers.

Care Requirements:

• Water Parameters:

  • Temperature: 20–28°C

  • pH Range: 6.0–8.0

  • Hardness: Very soft to hard water

• Lighting Requirements:
  Moderate to high lighting is recommended for healthy, compact growth. Under stronger lighting, Bacopa australis develops denser foliage and may display subtle reddish coloration. Insufficient lighting can result in elongated stems and wider spacing between leaves.

• Nutrient Requirements:
  Bacopa australis benefits from regular liquid fertilization containing essential macro- and micronutrients to support its relatively fast growth. Although it can grow without additional CO₂ injection, supplementation of approximately 10–20 mg/L can encourage more vigorous growth, stronger stems, and fuller foliage. A nutrient-rich substrate can further support healthy root development, although the plant also absorbs nutrients directly from the water column.

• Tank Setup:
  Ideal for midground to background placement, Bacopa australis can reach heights of up to approximately 50 cm under favourable growing conditions. Its delicate, rounded leaves and branching stems create attractive, bushy groups when planted together. For the best visual effect, separate individual stems and plant them a few centimetres apart in aquasoil or fine gravel. Regular trimming encourages lateral growth, allowing the plant to develop into compact, dense clusters. In suitable conditions, it may also produce creeping growth, making it a versatile choice for nature-style aquascapes.

Care Tips:

Bacopa australis is a relatively undemanding stem plant that responds exceptionally well to regular pruning. Trim the upper portions of the stems to encourage side shoots and create a fuller, bushier appearance. Healthy cuttings can be replanted directly into the substrate, making propagation simple and effective.

When transitioning from emersed to submerged growth, the plant may initially produce leaves with a different appearance. Emersed leaves are generally smaller and thicker, while submerged leaves become thinner and more delicate. Maintain stable water parameters, adequate lighting, and consistent fertilization to encourage healthy new growth. Avoid excessive shading from taller plants, as sufficient light is important for maintaining compact growth.

Bacopa australis is an excellent choice for aquascapers seeking a vibrant, fast-growing green stem plant that adds freshness, texture, and natural beauty to planted aquariums. Its delicate foliage, ease of propagation, and ability to develop dense, attractive groupings make it a versatile addition to both low-tech and high-tech aquascapes. Whether used as a lush background plant or maintained as a compact midground feature, this Dennerle potted plant brings lasting visual appeal to any planted aquarium.

Disclaimer: Product images are for display purposes only. As natural products, live plants will vary in size, shape, and colour. This product is supplied as a Dennerle potted aquarium plant. Actual plant size and fullness may vary depending on the growing stage and available stock.