ADA Alternanthera reineckii

ADA Alternanthera reineckii is a vibrant and highly decorative stem plant renowned for its striking red and purple hues. Its elongated leaves display deep crimson tones on the upper surface with a rich violet underside, making it one of the most popular choices for adding colour contrast and visual depth to a planted aquarium.

Under strong lighting and with adequate CO₂, its colours intensify beautifully, creating a captivating focal point in any aquascape layout.

How to Use in the Aquarium

Alternanthera reineckii works best as a midground to background plant where its vivid red tones can stand out against lush green species like Rotala, Hygrophila.

Regular trimming encourages compact, bushy growth and prevents the stems from becoming leggy. The cuttings can easily be replanted to form dense clusters or used to fill out colour sections across the scape. When grouped in threes or fives, it creates a natural, harmonious appearance while maintaining a striking presence.

For the most intense colouration, provide medium to high lighting, consistent CO₂ injection, and a balanced fertiliser routine rich in iron and micronutrients.

Maintenance

This species grows at a moderate pace and rewards consistent care with vibrant, healthy foliage. While it can survive in low-tech setups, CO₂ supplementation and strong light are highly recommended to achieve its signature red tones.

Trim regularly to maintain shape and remove older, lower leaves to promote new growth. Replant the healthiest stems to keep the group full and even. With proper care, ADA Alternanthera reineckii will remain a bold and eye-catching centrepiece in your aquascape.

Emersed

Alternanthera reineckii can also be grown emersed (with leaves above the water surface), where it develops slightly thicker, more robust leaves with even deeper red and purple tones. Emersed cultivation is commonly used in nurseries to promote strong, healthy growth before transitioning the plants to fully submerged aquariums.

When grown emersed, the stems are typically sturdier and easier to handle for planting in aquascapes. New leaves can be slightly more rigid and may have a brighter red hue, which helps the plant establish quickly once submerged. Regular trimming of older leaves ensures that the plant maintains a compact form and encourages fresh growth when it adapts to underwater conditions.

Alternanthera reineckii Growth Information