Species description

Care, breeding and tankmates

Plant profile

Placement

Midground

It is an incredibly versatile plant that can be used in the midground or background. Under very intense lighting, it exhibits a strong creeping habit, making it suitable for foreground cascading effects over rocks. Planting it in dense, slanted groups creates a fiery sweeping aesthetic. It needs unobstructed light to maintain both its color and its horizontal growth.

Botanical form

Stem

It has very narrow, pointed leaves that are slightly finer than standard Rotala rotundifolia. Its stems are thin and prone to bending downwards or growing horizontally under high light. The coloration ranges from warm orange to deep reddish-pink depending on the environment. Emersed growth is typically green with rounder leaves, similar to other rotundifolia variants.

Growth

Fast

The growth rate is very fast when provided with optimal light, CO2, and nutrients. It quickly forms dense thickets and horizontal mats that require frequent trimming. Its rapid metabolism makes it a great plant for balancing a new aquarium and outcompeting algae. Left unchecked, it will quickly reach the surface and shade out lower plants.

Substrate

Medium

Rotala rotundifolia "H'Ra" requires a nutrient-rich aqua soil to reach its full potential and produce its characteristic intense orange-red coloration. A substrate depth of at least 2 inches (5 cm) is ideal to anchor its delicate stems and support a robust root system. The fine roots easily penetrate porous clay-based substrates, extracting iron and other trace elements crucial for optimal growth and vibrant leaf pigmentation.

Column fertilization

Recommended

Liquid fertilization is the primary method of nutrient delivery for this stem plant. A comprehensive dosing schedule with extra iron and trace elements is highly recommended. Daily dosing ensures the plant has a constant supply of nutrients to fuel its fast growth. Nitrate limitation in the water column is a common technique used to enhance its redness.

Root fertilization

None

A nutrient-rich aquasoil provides a solid foundation for robust growth. While it feeds heavily from the water, a fertile substrate supports a strong root system. Root feeding provides a buffer of nutrients, ensuring the plant remains healthy even if column dosing fluctuates. Strong roots also help anchor its creeping stems securely to the bottom.

Trimming

Regular

Frequent and aggressive trimming is required to maintain a dense, bushy shape. Cutting the stems low encourages an explosion of lateral shoots. To create beautiful rolling slopes, trim the bush at an angle, keeping the front lower than the back. Older bushes can be refreshed by topping and replanting the vibrant upper shoots.

Propagation

Cuttings

Propagation is incredibly easy through stem cuttings. Simply snip the healthy tops and replant them directly into the substrate. The planted cuttings root rapidly, while the cut base produces multiple new shoots. Its creeping nature also allows it to root from the nodes along the stem when growing horizontally.

Sensitivity

Moderate

It is generally a resilient plant but will lose its distinct coloration if light or iron levels drop. Shading from taller plants will cause the lower leaves to melt away, leaving bare stems. It prefers slightly acidic water and stable CO2 levels. Sudden changes in water chemistry can lead to stunted tips.

Layout role

Midground, accent

It is heavily favored in Nature Aquariums for creating warm, fiery bushes that contrast beautifully with green plants. Its creeping habit makes it an excellent choice for softening hardscape edges or creating a smooth transition from foreground to background. It provides a striking focal point with its vivid orange-red hues. The fine texture adds a sense of scale to the layout.