PondPlantsUK Alternanthera Reineckii Aquarium Plant

For aquarium plants in a planted tropical setup, this red-leaved Alternanthera responds visibly to light and CO2 and is suited to hobbyists building a colourful freshwater display. It prefers medium to strong lighting and tropical temperatures around 22-28°C, tolerates a broad pH range of 5-8 and a wide span of water hardness. CO2 in the region of 20-30 mg/l is recommended to support its best appearance.

In practical terms, higher light combined with CO2 helps preserve compact growth and richer red colour, while lower light will slow growth and reduce pigmentation. Propagation is by tip cuttings and side shoots, so you can trim and expand planting areas gradually. This makes the plant a good choice for aquascapes where intentional colour contrast is required and where owners can provide regular trimming and moderate maintenance.

Key Features

• Medium to strong light with CO2 20-30 mg/l – promotes red pigmentation and steady, compact growth
• Tropical temperature range 22-28°C – matches common freshwater planted tank conditions
• Tolerant of pH 5-8 and varied water hardness – flexible across many freshwater setups
• Propagates from tip cuttings and side shoots – allows easy expansion and shaping of the planted area

Frequently Asked Questions

What aquarium conditions does this plant need?

Requires strong to medium light, temperature 22-28°C, pH 5-8, water hardness from soft to hard, and CO2 around 20-30 mg/l.

How can I propagate this plant?

Propagation is by tip cuttings and side shoots, allowing you to increase plant numbers within the aquarium.

Is this plant suitable for different water hardness levels?

Yes. It tolerates water hardness from soft to hard, according to the product specifications listed.

Does this plant need CO2 injection?

It benefits from CO2 levels of about 20-30 mg/l, so CO2 supplementation can improve growth under medium to strong lighting.

How is this plant used in an aquarium and does it need assembly?

This is a submerged aquarium plant intended for use inside an aquarium; no assembly is required.

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