Eriocaulon quinquangulare
Eriocaulon quinquangulare
Eriocaulon quinquangulare is a striking and highly demanding aquatic plant from India and Southeast Asia producing compact, symmetrical rosettes of thin, needle-like leaves in vibrant reddish tones — creating a starburst-like foreground accent of extraordinary botanical precision and visual impact. Like all Eriocaulon, it belongs to a genus of specialist plants that demand the most exacting soft-water, high-light conditions the hobby can offer, rewarding that commitment with a genuinely unique and beautiful planted aquarium specimen.
Care tip: Eriocaulon quinquangulare grows best in high lighting with CO₂ required. Maintain temperatures of 72–82°F and pH 5.0–7.0. Regular fertilization supports healthy growth.
Growing to just 2.5 to 5 inches, quinquangulare forms compact, star-shaped rosettes at the substrate level — a foreground plant of remarkable visual precision. The starburst form is most clearly and tightly expressed in plants maintained in very soft, acidic water with strong, consistent CO₂ and high lighting. Any shortfall in these parameters causes the rosette to open up and the reddish coloration to fade.
As a challenging plant, quinquangulare requires CO₂ injection and high lighting. The tight pH range of 5.0 to 7.0 and the need for very soft water reflect the specific conditions of this specialist plant. Temperatures between 72 and 82°F provide comfortable conditions. Pristine water quality and consistent parameters are as important as light and CO₂ for this demanding Indian species.
In the aquascape, Eriocaulon quinquangulare creates a botanical foreground accent of extraordinary precision — the tightly symmetrical starburst rosette of reddish needle-like leaves creates a visual focal point that draws the eye immediately. It pairs powerfully with other fine-textured foreground plants and natural hardscape in detailed, high-tech compositions where botanical precision is a design priority.
Eriocaulon quinquangulare is a demanding specialist plant for dedicated high-tech aquarists with carefully managed soft-water systems. Its vivid reddish starburst rosette is one of the most botanically precise and visually distinctive foreground forms available in the freshwater planted aquarium hobby.
Care & Specifications
| Difficulty | Challenging |
| Placement | Foreground |
| Max Height | 2.5–5 inches |
| Light Level | High |
| Temperature | 72–82°F |
| pH | 5.0–7.0 |
| CO2 Needs | Required |
| Origin | India, Southeast Asia |
| Notes | vibrant, red, spiky, starburst-like rosette of thin, needle-like leaves |
