Species description

Care, breeding and tankmates

Plant profile

Placement

Midground

It is ideally placed in the midground of the aquarium where it can serve as a striking focal point. Because of its intense color, it is best grouped in a dense bush against a green backdrop. Ensure it receives unobstructed light for maximum color expression.

Botanical form

Stem

It has thick stems and fleshy, ovate leaves that grow opposite each other. Under optimal conditions, the leaves develop deep purple to reddish hues. The overall structure is sturdy and upright, very similar in shape to B. caroliniana but with spectacular coloration.

Growth

Fast

Its growth rate is slow to moderate, making it relatively easy to maintain compared to fast-growing red stem plants. It takes some time to acclimate and begin upward growth after planting. This manageable pace makes it perfect for meticulously planned aquascapes.

Substrate

Medium

Bacopa salzmannii displays its best coloration and growth when planted in a moderately nutrient-rich substrate, such as a specialized aqua soil. Its root system establishes firmly within a 4 to 6 centimeter deep bed, functioning both as a strong anchor for its fleshy stems and as a primary conduit for mineral uptake. While it can survive in inert setups if water column fertilization is robust, a fertile bottom greatly enhances the vivid reddish-purple hues often seen in this species. The use of fine to medium-grained substrates is recommended to allow its delicate roots to penetrate effortlessly.

Column fertilization

Required

Liquid column fertilization is highly effective, as it absorbs many nutrients through its leaves. A strict dosing regimen of iron and trace elements is necessary to maintain the deep purple tones. Potassium is also crucial for preventing holes in older leaves.

Root fertilization

Recommended

A rich, active soil substrate greatly benefits its overall health and root development. Inserting root tabs at the base of the stems can give it an extra boost during the acclimation phase. Strong roots are necessary to support its thick, heavy stems.

Trimming

Occasional

Trim the plant by cutting the stem just above a healthy leaf node. The trimmed tops can be replanted, while the remaining base will sprout new side shoots. Regular trimming encourages a much denser, bushier form over time.

Propagation

Cuttings

Propagation is straightforward through stem cuttings. Take a cutting from the top of the plant and push it gently into the substrate. The cutting will quickly develop roots and continue growing as a new plant.

Sensitivity

LOW

While somewhat hardy, it will quickly lose its intense colors if light or nutrients are lacking. It does not tolerate heavy shading well, which causes the lower leaves to rot. It is relatively resilient against common algae if the plants are growing healthily.

Layout role

Midground, Background

Its primary role is to provide a dramatic splash of purple or dark red color in the aquascape. It contrasts beautifully with bright green, fine-leaved background plants. It is highly sought after by aquascapers looking for unique color variations beyond standard reds.