Helanthium bolivianum 'Quadricostatus' (Dwarf Chain Sword)

30 September 2026

Helanthium bolivianum 'Quadricostatus' is a small rosette plant used mainly in the foreground of planted aquariums. It produces narrow, bright-green leaves and can spread by runners to form a low carpet or grouped ground cover. The supplied source identifies it as this cultivar; aquarium plants sold under similar chain-sword names can be difficult to distinguish without a verified specimen, so the identification is treated as probable rather than definitive.

Helanthium bolivianum 'Quadricostatus' (Dwarf Chain Sword)

Identification

This plant forms a compact basal rosette of narrow, pointed leaves. Helanthium bolivianum 'Quadricostatus' is an aquarium cultivar associated with the dwarf chain-sword group and is often linked in older aquarium literature with Echinodorus quadricostatus. Names in this group have been used inconsistently, so definitive identification may require comparison with a reliably sourced specimen.

Placement and growth

Plant it in the foreground, leaving the crown exposed and spacing individual rosettes a few centimetres apart. Once established, it commonly produces runners that develop daughter plants. Allow the runners to spread for a natural carpet, or remove and replant them to keep the group defined.

Cultivation

Use a nutrient-containing substrate, as this is a rooted plant that benefits from access to nutrients around its roots. Moderate lighting supports compact growth; stronger light can encourage denser coverage but also increases the need for balanced fertilisation and algae control. Stable water conditions and regular water changes are preferable to frequent fluctuations.

Maintenance

Trim damaged or excessively long leaves close to the base with clean scissors. Thin crowded patches so water can circulate around the crowns, and replant healthy daughter rosettes if the carpet becomes uneven. Melting older leaves after planting or a change from emersed to submerged growth can occur; remove them while the plant adapts.

Plant info

Colors: Green, Light green
Difficulty: Easy
Origin: Cultivar
Usage: Foreground
Type: Rosette aquatic plant
Growth rate: Medium
Height: 5-15 cm
Light demand: Medium
CO2: Medium

Helanthium

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