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Eleocharis acicularis (Bonsai Needlewort)

08 September 2026

Eleocharis acicularis, commonly known as bonsai needlewort, is a popular grass-like plant for the foreground of aquascaped tanks. This diminutive form creates a dense, carpet-like appearance when provided with sufficient light and nutrients. Its slender, bright green blades spread via underground runners, making it an excellent choice for creating natural-looking grassy meadows in freshwater aquarium layouts.

Eleocharis acicularis (Bonsai Needlewort)

Cultivation Requirements

To achieve a compact carpet, this plant requires high light intensity and regular carbon dioxide supplementation. It thrives in nutrient-rich substrates, which support the development of its extensive root system. Without adequate lighting, the blades will grow taller and appear sparse rather than forming a tight, low-lying mat.

Maintenance

Regular maintenance involves trimming the carpet to encourage lateral growth and prevent the older bottom layers from dying off due to lack of light. Since it spreads via runners, it can quickly colonize open areas. Ensure the substrate remains clean to prevent algae growth, which can easily entangle within the fine blades of the needlewort.

Plant info

Colors: Green

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