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Stem Plants

Stem plants are fast-growing freshwater aquarium plants that add height, colour, and movement to planted tanks and aquascapes. Perfect for background planting, many stem species are easy to trim and propagate, making them ideal for both beginner and advanced aquarists looking to create lush, vibrant aquariums.

Stem Plants FAQs

Stem plants are aquatic plants that grow vertically from a central stem, producing leaves along their length. They are popular in planted aquariums due to their fast growth, vibrant colours, and ability to create dense backgrounds.

Stem plants should be planted directly into the substrate, spacing each stem slightly apart to allow light and water circulation. This helps encourage healthy root development and fuller growth.

Many stem plants are excellent for beginners. Species such as Hygrophila, Bacopa, and Ludwigia are relatively easy to care for and adapt well to a variety of aquarium conditions.

Not necessarily. Many stem plants grow well without added CO₂, although supplementation can improve growth rates, colouration, and overall plant health, particularly for more demanding species.

Tall, leggy growth is often caused by insufficient lighting. Increasing light intensity or duration can encourage more compact growth and fuller foliage.

Most stem plants are easily propagated by cutting the healthy top portion of a stem and replanting it in the substrate. The original stem will often produce new side shoots, creating a bushier appearance.

Yes. Fast-growing stem plants are excellent at absorbing nitrates and excess nutrients from the water, helping to reduce algae and improve overall aquarium stability.

Stem plants benefit from regular trimming to maintain their shape and prevent them from overshadowing other plants. Frequent pruning also encourages denser growth and can provide cuttings for propagation.

About Code & Koi

Code & Koi is a small, UK based independent studio bringing together a love of aquatics, web development, and design. We curate and carefully select plants, hand craft botanical products, and source useful tools for aquarists who value balance, simplicity, and long-term health.