Bacopa Myriophylloides, commonly known as Brazilian Bacopa
Bacopa Myriophylloides, commonly known as Brazilian Bacopa
Bacopa myriophylloides, commonly known as Brazilian bacopa is a rare, delicate stem plant native to the boggy, shallow waters of the Pantanal region in Central Brazil. Unlike most broad-leaved members of the Bacopa family, this unique species features fine, needle-like, feathery green leaves that mimic the appearance of the Myriophyllum (milfoil) genus. Botanically, it does not grow true leaf whorls; instead, it has two leaves per node that immediately split into 5 to 7 fine segments right at the base.
Plant Overview & Characteristics
Growth Form: Vertical, upright stem plant.
Texture & Movement: Wispy, soft texture that flows gracefully in aquarium currents.
Height: Typically reaches heights between 15 to 40 cm.
Aquarium Placement: Ideal for midground to background groupings to create thick, lush mats.
Emersed Growth: Can grow out of water in paludariums, where it easily produces small, white to pale blue flowers.
Care & Cultivation Requirements
While emersed cultivation in plant nurseries is straightforward, keeping Bacopa myriophylloides submersed in an aquarium is demanding and generally recommended for experienced aquascapers.
Lighting: Requires medium to high/intense full-spectrum light. Low light causes the fragile stems to become leggy and lose their lower leaves.
Water Chemistry: Thrives in soft, slightly acidic water.
pH Range: 5.0 to 7.0 (some variants tolerate up to 7.5).
Temperature: Prefers temperatures between 22°C and 26°C, though it has a broader thermal tolerance of 20°C to 30°C.
CO₂ Injection: Highly recommended to essential for healthy, compact submersed growth.
Nutrients: Needs a reliable liquid fertilization routine and a well-fertilized, algae-free environment.
Aquascaping & Propagation
Because of its fine texture, it serves as a stunning visual contrast against broad-leaved species like Anubias or Cryptocoryne. It is easily propagated by taking head cuttings from healthy stems and replanting them into the substrate. When purchased as a sterile in-vitro laboratory culture, it is entirely free of pests, snails, and algae, making it safe to introduce immediately into shrimp or nano tanks.