Species description

Care, breeding and tankmates

Plant profile

Placement

Background

Best placed in the background or midground of the aquarium where its rapid vertical growth can be easily managed. It can form dense thickets when planted in groups. Suitable for concealing equipment or softening harsh hardscape edges.

Botanical form

Stem

Features an upright stem structure with elongated, light green leaves arranged in opposite pairs. Under higher light, the top leaves can develop an attractive brownish-red tint. Its appearance can vary significantly based on light and nutrient availability.

Growth

Fast

Exhibits a very fast growth rate, often reaching the water surface within a short period. This rapid growth makes it an excellent candidate for outcompeting algae in newly established tanks. Frequent pruning is necessary to keep it compact.

Substrate

None

Hygrophila polysperma is an incredibly hardy and undemanding stem plant that can grow in almost any substrate. Its roots develop rapidly, anchoring the plant firmly whether planted in plain gravel or nutrient-rich aqua soil. While it primarily absorbs nutrients from the water column through its leaves and stem, providing a fine-grained substrate of 3 to 5 cm depth helps maintain its vigorous growth.

Column fertilization

Recommended

Highly efficient at absorbing nutrients directly from the water column through its leaves and adventitious roots. Regular dosing of a comprehensive liquid fertilizer ensures vibrant foliage and strong stems. It acts as a great indicator plant for overall nutrient levels.

Root fertilization

None

While not strictly necessary, an enriched substrate or the addition of root tabs will promote robust root development. A strong root system helps anchor its fast-growing stems securely in the substrate. It can thrive perfectly well in plain sand or gravel if the water column is rich in nutrients.

Trimming

Regular

Requires frequent and sometimes aggressive trimming to prevent it from shading neighboring plants. Simply cut the stem at the desired height; new shoots will quickly form at the cut nodes. The trimmed tops can be easily replanted to propagate the group.

Propagation

Cuttings

Easily propagated through stem cuttings; replanting the healthy tops is the most straightforward method. Even small fragments left floating in the aquarium can develop roots and new leaves. This prolific nature makes it a very easy plant to share and multiply.

Sensitivity

Moderate

Extremely hardy and tolerant of a wide range of water conditions, making it relatively immune to minor fluctuations. It is generally resistant to most common aquarium plant diseases. Can sometimes melt slightly when first introduced to significantly different water parameters, but recovers swiftly.

Layout role

Background

Functions perfectly as a fast-growing background filler that adds lush, bright green texture to the layout. Its dense growth provides excellent hiding spots for fry and shy fish species. Can be shaped into distinct bushes with disciplined trimming.