Rotala Macrandra

About Rotala Macrandra

Rotala Macrandra is one of the most spectacular red stem plants in the aquarium hobby, often regarded as one of the premium choices for high-tech planted aquariums. It is prized for its broad, delicate leaves and intense colouration, which can range from green and bronze through to vibrant pink, orange, and deep red depending on the variety and growing conditions.

Native to India, Rotala Macrandra is a demanding plant that performs best in aquariums with strong lighting, stable CO₂, soft water, and consistent nutrient availability. Under excellent conditions, it can develop spectacular red colouration and dense branching growth.

Its larger, delicate leaves create a completely different appearance from finer-leaved Rotala varieties such as Rotala Blood Red or Rotala Green. It works particularly well as a midground or background feature plant, where groups of healthy stems can create a dramatic splash of colour.

Rotala Macrandra is sensitive to shading and poor conditions, so stems should be given enough space for light to reach the lower portions of the plant. Once established, regular trimming encourages branching and allows you to create dense, colourful bushes.

For experienced aquascapers, few plants can match the colour and visual impact of a healthy Rotala Macrandra.

Quick Care Guide

Scientific Name: Rotala macrandra
Common Name: Rotala Macrandra / Giant Red Rotala
Origin: India
Plant Type: Stem Plant
Growth Rate: Moderate to Fast
Difficulty: Advanced
Lighting: High
CO₂ Required: Highly Recommended
Temperature: 22–28°C
pH: Approximately 6.0–7.5
Water Hardness: Soft to Moderate
Placement: Midground to Background
Suitable For: High-tech planted aquariums, Dutch aquascapes, Nature Aquariums, and aquascaping displays

Frequently Asked Questions

Does Rotala Macrandra require CO₂?

CO₂ is not technically essential for survival, but it is strongly recommended for maintaining healthy, compact growth and achieving the plant's characteristic intense colouration.

Why is my Rotala Macrandra losing its lower leaves?

Shading is a common issue. The delicate lower growth requires good light penetration, so avoid planting the stems too densely and trim regularly to maintain light throughout the group.

How do I get Rotala Macrandra red?

Strong lighting, stable CO₂, suitable soft water, and balanced fertilisation are key. Different Macrandra varieties also naturally have different colour potential.

How do I propagate Rotala Macrandra?

Trim healthy stems and replant the upper portions into the substrate. The remaining stems can also produce new side shoots, allowing the plant to become bushier.

Is Rotala Macrandra suitable for beginners?

It is better suited to experienced aquascapers. Compared with many other Rotala species, Macrandra is considerably more demanding and less tolerant of inconsistent conditions.

Common Mistakes

Insufficient lighting
Low light can cause the plant to lose lower leaves and become sparse.

Unstable CO₂
Inconsistent CO₂ can result in poor growth and make it difficult to maintain strong colouration.

Planting stems too closely
Give individual stems room so light can reach the lower leaves and water can circulate through the group.

Poor nutrient availability
Rotala Macrandra benefits from consistent access to both macro and micronutrients.

Hard or unsuitable water
This plant generally performs best in softer water conditions.

Over-trimming
Allow the plant to establish before heavily pruning. Once healthy growth is established, regular trimming can be used to encourage branching.