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About Eriocaulon 'Shiga'

Eriocaulon 'Shiga' is a rare and highly desirable rosette plant prized for its symmetrical star-shaped growth and fine, needle-like green leaves. Originating from Japan, this elegant aquatic plant has become a favourite among high-end aquascapers for its clean architectural form and ability to create stunning focal points in Nature Aquariums and Iwagumi layouts.

Unlike many rosette plants, Eriocaulon 'Shiga' forms a dense, perfectly rounded crown of narrow leaves that radiate outward from the centre. Under ideal conditions, it produces a vibrant emerald-green colour and can occasionally send up delicate flowering stalks, adding even more visual interest.

Eriocaulon 'Shiga' thrives in nutrient-rich aquasoils with bright lighting and benefits greatly from CO₂ injection. Consistent fertilisation and stable water parameters encourage compact growth, vibrant colouration, and healthy root development. Due to its more demanding requirements, it is best suited to intermediate and advanced planted aquarium enthusiasts.

Its compact growth habit makes it ideal as a foreground or midground feature plant, where it contrasts beautifully with carpeting plants, mosses, and fine-textured stem plants.

Elegant, unique, and exceptionally rewarding to grow, Eriocaulon 'Shiga' is a premium choice for competition-level aquascapes and showcase planted aquariums.

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Quick Care Guide

Scientific Name

Eriocaulon sp. 'Shiga'

Common Name

Eriocaulon 'Shiga'

Origin

Japan (cultivated variety)

Plant Type

Rosette Plant

Growth Rate

Slow to Moderate

Difficulty

Advanced

Lighting

High

CO₂ Required

Yes (Highly Recommended)

Temperature

20–26°C

pH

5.5–7.0

Water Hardness

1–8 dGH

Placement

Foreground to Midground

Suitable For

Nature aquariums, Iwagumi layouts, Dutch aquascapes, and high-tech planted aquariums

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Frequently Asked Questions

Is Eriocaulon 'Shiga' suitable for beginners?

It is better suited to intermediate or advanced aquascapers, as it performs best with high lighting, nutrient-rich substrate, and CO₂ injection.

Does Eriocaulon 'Shiga' require CO₂?

Yes. While it may survive without CO₂, supplemental CO₂ is strongly recommended for compact growth, vibrant colouration, and long-term success.

How do I plant Eriocaulon 'Shiga'?

Plant the roots into a nutrient-rich aquasoil while keeping the crown just above the substrate to prevent rot.

Why are the leaves melting?

Leaf melt is commonly caused by unstable water parameters, poor nutrition, lack of CO₂, or sudden environmental changes after planting.

Can Eriocaulon 'Shiga' flower underwater?

Yes. Under excellent conditions, mature plants may produce slender flower stalks, adding an attractive feature to the aquarium.

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Common Mistakes

Insufficient lighting

Low light often results in slow growth, elongated leaves, and poor plant health.

Growing without CO₂

Although possible, the plant performs significantly better with stable CO₂ injection.

Poor nutrient availability

Eriocaulon 'Shiga' is a heavy root feeder and benefits from nutrient-rich aquasoils and regular fertilisation.

Planting the crown too deeply

Only the roots should be buried. Covering the crown can lead to rot.

Unstable water conditions

Consistent water parameters, regular maintenance, and good circulation are essential for healthy growth.