Alternanthera Reineckii Red

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About Alternanthera Reineckii Red

Alternanthera Reineckii Red is a striking red stem plant that brings rich colour and contrast to freshwater planted aquariums. Its elongated leaves can develop shades of red, burgundy, pink and purple, creating a strong visual feature among predominantly green aquatic plants.

It is an excellent midground to background plant, particularly when planted in groups. The vibrant foliage makes it ideal for creating focal points, colour transitions and contrast around rocks and driftwood.

Alternanthera reineckii is relatively adaptable compared with many other red aquarium plants. It can grow in lower-tech aquariums, although moderate to high lighting, CO₂ and consistent fertilisation will produce stronger growth, more compact stems and better colour.

Regular trimming encourages branching and allows healthy cuttings to be replanted, helping develop a dense group over time.

Quick Care Guide

• Scientific Name: Alternanthera reineckii
• Common Name: Alternanthera Reineckii Red
• Family: Amaranthaceae
• Type: Stem Plant
• Difficulty: Moderate
• Growth Rate: Moderate
• Placement: Midground to Background
• Lighting: Moderate to High
• CO₂: Recommended
• pH: 5.5–7.5
• Temperature: 20–28°C
• Water Hardness: Soft to Moderately Hard
• Propagation: Stem Cuttings
• Colour: Red, Pink, Burgundy to Purple
• Aquarium Type: Freshwater

Frequently Asked Questions

Does Alternanthera Reineckii need CO₂?

It can grow without injected CO₂, but CO₂ supplementation will generally produce faster growth, better density and stronger coloration.

How do I make Alternanthera Reineckii red?

Good lighting, adequate nutrients and stable CO₂ are key factors. Higher light intensity can encourage stronger red pigmentation.

Where should I plant it?

It is best positioned in the midground or background, where its height and colourful foliage can be displayed effectively.

How do I trim Alternanthera Reineckii?

Cut the stem above a healthy node. The cutting can be replanted into the substrate, while the remaining stem can produce new side shoots.

Is it suitable for beginners?

It is a relatively forgiving red stem plant and can be a good choice for beginners wanting to introduce colour into a planted aquarium.

Does it need root fertilisation?

It primarily feeds from the water column, so regular liquid fertilisation is beneficial. Nutrient-rich substrate can provide additional support.

Common Mistakes

• ❌ Using insufficient lighting
• ❌ Expecting intense red colour without adequate nutrients
• ❌ Neglecting CO₂ in a high-light aquarium
• ❌ Planting stems too deeply
• ❌ Allowing stems to become long and leggy
• ❌ Failing to trim and replant healthy tops