Species description

Care, breeding and tankmates

Plant profile

Placement

Background

Due to its sheer size, broad leaves, and rapid vertical growth, it is strictly a background plant in all but the most massive aquariums. It should be planted in small groups, allowing enough space between stems so the broad leaves do not entirely block light from the lower sections. Its large, light green leaves provide an excellent contrast to fine-leaved or reddish plants. It is commonly used to hide heaters and filter intakes.

Botanical form

Stem

It features very thick, sturdy, upright stems supporting large, broad, lanceolate leaves. Under typical aquarium lighting, the leaves are a bright, light green, but intense lighting can sometimes coax out subtle bronze or reddish hues near the surface. The plant has a very imposing, substantial presence in the aquascape. Its thick stems can sometimes become slightly woody near the base as the plant matures.

Growth

Fast

The growth rate is exceptionally fast when provided with good light and ample nutrients. It easily breaks the water surface and will readily grow emersed, where it may produce small, beautiful purple flowers. Frequent, sometimes weekly, pruning is required to keep it from dominating the aquarium and shading out everything else. Cutting the tops encourages prolific side shoots, quickly creating a massive, bushy thicket.

Substrate

High

This large plant develops an extensive, powerful root system that greatly appreciates a deep, nutrient-rich substrate. An active aquasoil or a dirted tank provides an ideal foundation for its massive growth potential. However, it is very adaptable and will grow successfully in plain gravel or sand, especially if supplemented heavily with root tabs. Ensuring a substrate depth of at least 2-3 inches is necessary to anchor its large, buoyant stems.

Column fertilization

Required

Consistent liquid column fertilization is highly beneficial due to the plant's massive foliar surface area. It readily absorbs NPK and trace elements directly from the water, making it a great biological filter for heavily stocked tanks. Dosing a potassium-rich liquid fertilizer is crucial to prevent the older leaves from deteriorating and developing holes. Daily or bi-weekly comprehensive dosing yields the healthiest, largest leaves.

Root fertilization

Recommended

Root feeding produces spectacular results and is highly recommended, even if the plant also feeds from the water column. Placing root tabs directly beneath the stems in an inert substrate ensures the plant has the energy needed for its rapid, large-scale growth. A rich soil environment prevents the lower stem from rotting and dropping leaves, a common issue in nutrient-poor setups. It readily utilizes any nutrients available in the substrate.

Trimming

Regular

Trimming is straightforward: simply cut the thick stem with strong scissors. The plant will rapidly produce side shoots from the remaining nodes, creating a denser bush. The cut tops are perfect for replanting to expand the group.

Propagation

Cuttings

Propagation is incredibly easy and highly successful. Simply cut the top portion of a stem and replant it deeply into the substrate; it will root within a few days. The original, rooted bottom section will quickly produce two or more new side shoots from the cut node, leading to a much bushier plant. Even individual leaves left floating can sometimes develop roots, demonstrating its remarkable vitality.

Sensitivity

Moderate

It is highly tolerant of varying water parameters, making it excellent for beginners. Its main vulnerability is potassium deficiency, which is easily remedied with proper dosing. It resists algae well due to its vigorous growth rate.

Layout role

Background

It serves as a dominant background structural element in the aquascape. Its broad leaves offer a stark contrast to fine-leaved species and provide hiding spots for fish. It is often used to create a dense, jungle-like atmosphere.