Alternanthera reineckii Aquatic Plant

Alternanthera reineckii is one of the most iconic red stem plants in the freshwater aquarium hobby, prized for its vibrant crimson, burgundy, and magenta foliage. Its striking coloration creates a dramatic contrast against green aquatic plants, making it a favorite among aquascapers looking to add depth and visual impact to their layouts. Whether used as a colorful accent or a bold focal point, Alternanthera reineckii brings elegance and vibrancy to any planted aquarium.

Native to the wetlands and slow-moving waterways of South America, Alternanthera reineckii thrives in nutrient-rich aquariums with stable water conditions. It performs best under moderate to high lighting, where its leaves develop the most intense red coloration. While it can grow without supplemental CO₂, adding CO₂ along with regular fertilization and iron supplementation encourages faster growth, fuller stems, and richer colors.

Alternanthera reineckii is a moderate-growing stem plant that responds well to regular trimming. Frequent pruning promotes dense, bushy growth, and healthy cuttings can easily be replanted to create vibrant groups in the midground or background of the aquarium. Its colorful foliage makes it an excellent centerpiece in Nature Aquariums, Dutch-style aquascapes, and high-tech planted tanks.

This stunning plant pairs beautifully with Ludwigia, Rotala, Cryptocorynes, Anubias, Bucephalandra, Vallisneria, Java Fern, and carpeting plants. It also provides shelter for shrimp, fry, and small community fish while contributing to a healthy, natural aquatic environment.

Scientific Name: Alternanthera reineckii
Common Name: Alternanthera reineckii
Care Level: Moderate
Growth Rate: Moderate
Lighting Requirement: Moderate to High
CO₂ Requirement: Recommended
Placement: Midground to Background
Maximum Height: Up to 20 Inches
Origin: South America

If you're looking to add brilliant red color and striking contrast to your planted aquarium, Alternanthera reineckii is an exceptional choice. Its vibrant foliage, graceful growth, and dramatic appearance make it one of the most popular and rewarding stem plants for freshwater aquascaping.

This eye catching plant is called Alternanthera Reineckii! Having a plant with red colors can take your aquascape to the next level. It can be grown with or without CO2. However, if you want it to stay bright red, CO2 is necessary. Make sure the substrate is full of nutrients and that you give it medium lighting and it will take off!