Species description

Care, breeding and tankmates

Plant profile

Placement

Midground

This stem plant is best utilized as a striking background specimen in larger aquariums, where it has room to grow vertically. Its fine, feathery leaves provide excellent contrast against broad-leafed plants like Echinodorus or Anubias. Ensure it is not shaded by other plants, as it requires direct, intense light to thrive.

Botanical form

Stem

It features delicate, finely divided, fan-shaped leaves arranged in opposite pairs along a central, somewhat fragile stem. Under intense lighting and good iron availability, the foliage takes on a beautiful reddish-brown hue. The plant's feathery appearance makes it an excellent refuge for small fish and fry.

Growth

Fast

Under optimal conditions of high light and CO2 injection, Cabomba palaeformis 'Rotbraun' exhibits an incredibly rapid growth rate. It can easily grow several inches per week, requiring frequent trimming to maintain its shape and prevent it from shading neighboring plants. Frequent pruning actually encourages bushier, denser growth.

Substrate

Low

A nutrient-rich aquasoil is highly recommended for cultivating Cabomba palaeformis 'Rotbraun' successfully. While it can draw many nutrients directly from the water column, a fertile substrate promotes a more robust and stable root system. Avoid inert substrates like plain sand or gravel unless they are heavily supplemented with root tabs.

Column fertilization

Recommended

A complete liquid fertilizer containing nitrogen, phosphorus, potassium, and trace elements should be dosed regularly. Pay special attention to iron and micronutrients to maintain the red-brown coloration. Deficiencies in the water column will quickly manifest as stunted growth or pale, translucent leaves.

Root fertilization

None

Although it heavily relies on water column nutrients, this plant greatly benefits from supplemental root fertilization. Placing root tabs rich in iron and macronutrients near the base of the stems can significantly improve overall health and coloration. This ensures the plant never runs out of essential elements during rapid growth phases.

Trimming

Occasional

Trim by cutting the stem at the desired height, just above a node. The lower portion will produce side shoots, making the plant bushier over time. Replant the cut tops to propagate and create denser groupings.

Propagation

Cuttings

Propagation is straightforward and involves taking cuttings from the top portion of healthy stems. Simply cut the stem just above a leaf node, and carefully replant the top cutting into the substrate. The original bottom section will typically sprout new side shoots from the cut area.

Sensitivity

Moderate

Sensitive to sudden changes in water parameters and poor water quality. Requires clean water with regular water changes to prevent algae growth on its fine leaves. Prefers slightly acidic to neutral pH and soft to medium-hard water.

Layout role

Midground, Background

Serves as an excellent background plant, providing contrast with its reddish-brown color and feathery texture. Ideal for creating dense, colorful thickets in planted aquariums. Can also be used to hide aquarium equipment effectively.