Rotala rotundifolia 'H'ra'

Rotala rotundifolia 'H'ra' is a highly popular and visually striking stem plant in aquascaping, known for its intense orange to reddish coloration and fine, elegant texture. Originating from Vietnam, this variety stands out as one of the most vibrant forms of Rotala, making it a favorite choice for creating colorful accents and dynamic backgrounds in planted aquariums.

The plant features thin stems with small, narrow leaves that can develop stunning shades of orange, pink, and red under optimal conditions. Its coloration is strongly influenced by lighting, CO₂, and nutrient availability—especially nitrate levels. Lower nitrate concentrations combined with high light often result in more intense red and orange tones.

Rotala 'H'ra' is typically used in the midground to background, where it can form dense, flowing bushes that add depth, contrast, and movement to the aquascape. When planted in groups, it creates a soft, fiery gradient effect that pairs beautifully with green plants and dark hardscape materials.

This species thrives under medium to high lighting, with high lighting being ideal for achieving its most vibrant colors. CO₂ injection is highly recommended, as it promotes compact growth, healthier stems, and richer coloration. Without CO₂, the plant may grow more slowly and display less intense hues.

It primarily absorbs nutrients from the water column, so consistent dosing of liquid fertilizers is important. Maintaining stable water parameters is key to preventing issues like melting or uneven growth.

Regular trimming is essential to keep Rotala 'H'ra' dense and well-shaped. Cutting the stems encourages side shoots, resulting in bushier growth. Replanting the trimmed tops helps create fuller clusters and refine the layout.

Easy to propagate and relatively adaptable, Rotala rotundifolia 'H'ra' is suitable for aquascapers of various experience levels who want to introduce vivid color and energy into their aquarium designs.