Alternanthera reineckii 'Pink' is one of the most striking colour plants you can add to a planted aquarium. Its leaves are a vivid contrast of olive-green on top and deep magenta-pink underneath — and under good light, the whole plant shifts toward rich red, creating a bold focal point that stands out against the greens of most aquarium plants.
Native to South America, it grows to 25–50cm tall and is best planted in groups of 5 or more in the midground or background, where the colour contrast has maximum visual impact. The more light you give it, the more intense the red becomes.
It's easy to propagate: simply trim the top 5–10cm and replant it in the substrate. This also encourages the mother plant to branch out and become bushier, giving you more colour coverage over time.
- Position: Midground to background
- Light: Medium to high (more light = deeper red)
- CO2: Not required, but improves colour intensity
- Height: 25–50cm
- Origin: South America
Supplied as an established potted stem plant, ready to plant straight into your aquarium.