Rotala wallichii (Wallich's Rotala)

06 November 2026

104

Rotala wallichii is a delicate, fine-leaved stem plant from Asia that can develop pink to red growth tips under strong light and stable carbon dioxide. The supplied source identifies the plant as this species, although a definitive identification from a photograph alone is limited. It is best suited to experienced aquarists and is commonly used as a detailed background or midground accent.

Identification

Rotala wallichii forms slender, upright stems with narrow leaves arranged closely around the stem. Submerged growth is typically green, pink, orange or red depending on light intensity, carbon dioxide availability and general plant nutrition. Color and leaf form can overlap with other fine-leaved Rotala species, so the photograph and supplied source support, but do not independently prove, the identification.

Placement and planting

Use it in the background or as a detailed midground group in a planted aquarium. Separate the stems and plant them individually into the substrate, leaving enough space for water movement and light to reach the lower portions. Planting small groups rather than a dense bundle helps reduce shading and allows new shoots to develop evenly.

Cultivation

Provide strong, consistent lighting, reliable carbon dioxide injection and a complete supply of macro- and micronutrients. Stable conditions are more important than abrupt changes in light or fertilisation. Soft to moderately hard, clean water and regular maintenance are generally suitable, but the plant may become sparse or remain green when light, carbon dioxide or nutrients are insufficient.

Trimming and propagation

Propagate by cuttings. Remove healthy upper sections and replant them after trimming away damaged lower leaves. Repeated topping encourages branching and creates a denser group. Remove weak or shaded stems so that light and circulation reach the remaining growth.

Plant info

Colors: Green, Red, Pink
Difficulty: Advanced
Origin: Asia
Usage: Background
Type: Stem plant
Growth rate: Medium
Height: 10-30 cm
Light demand: High
CO2: High

Rotala

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