Red Cabomba

Species description

Care, breeding and tankmates

Plant profile

Placement

Background

Ideally suited for the background of a planted aquarium where its tall stems can reach toward the light. Its striking color provides an excellent focal point when planted in groups. Care should be taken not to shade it with other tall plants.

Botanical form

Stem

Features highly divided, feathery leaves that grow in opposite pairs or whorls along the stem. It develops a stunning pink to purplish-red color under intense illumination. The delicate foliage creates a soft, textured appearance in the aquascape.

Growth

Fast

Grows very rapidly when its high demands for light, CO2, and nutrients are met. In optimal conditions, it can quickly reach the water surface and may require frequent trimming. Suboptimal conditions will severely slow its growth and cause it to lose leaves.

Substrate

moderate

Column fertilization

Recommended

Highly dependent on water column fertilization to meet its nutritional needs. A comprehensive liquid fertilizer regime is mandatory for its survival and best coloration. Iron supplementation is particularly critical to prevent the leaves from turning pale green or yellow.

Root fertilization

None

While it draws most nutrients from the water column, a fertile substrate can provide an additional nutrient reserve. Root tabs can aid in establishing a strong root system, which helps anchor the plant. However, substrate fertilization alone is insufficient for this demanding species.

Trimming

Regular

Trim by topping the plant, cutting the stem just above a leaf node. Replant the healthy top portion to maintain the vibrant color and replace older, potentially deteriorating lower stems. Leaving the bottom portion may encourage branching, but the lower stem often loses its aesthetic appeal.

Propagation

Cuttings

Easily propagated through taking stem cuttings from healthy growth. Plant the cuttings directly into the substrate, ensuring they have sufficient space and light. The cuttings will quickly develop roots and resume active growth if conditions are right.

Sensitivity

high

Considered a very demanding and difficult plant to grow. It is highly sensitive to fluctuations in water chemistry, poor water circulation, and insufficient lighting. Soft, slightly acidic water is practically a requirement for long-term success.

Layout role

Background, color accent

Acts as a dramatic and colorful background accent in Dutch and nature-style aquascapes. Its bright purplish-red hues contrast beautifully with vibrant green plants. Due to its difficulty, it is often considered a showpiece plant for experienced aquascapers.