Nomaphila corymbosa

Species description

Care, breeding and tankmates

Plant profile

Placement

Midground

Because of its large leaf size and robust stems, it is best placed in the background of most aquariums. In very large or deep tanks, it can serve as a midground focal point. It should be given plenty of space, as its broad leaves can easily shade out smaller plants growing beneath it.

Botanical form

Stem

It features thick, rigid stems and large, opposite, lanceolate to ovate leaves that are bright green. Under intense light, the uppermost leaves may develop a slight bronze or reddish tint. When it breaches the surface, it easily transitions to emersed growth, producing harder leaves and eventually small purple flowers.

Growth

Medium

The growth rate is very fast, particularly in nutrient-rich water with strong lighting. It can grow several inches a week and will quickly breach the water surface if left unchecked. Even in low-tech setups without CO2, it maintains a respectable and steady growth pace.

Substrate

High

Nomaphila corymbosa produces an extensive and powerful root system that requires a deep, nutrient-rich substrate for optimal health. The thick roots firmly anchor the large, heavy stems and vigorously absorb macronutrients to support the plant's rapid growth and broad leaves. A substrate depth of at least 3 to 4 inches, composed of high-quality aquasoil or heavily supplemented gravel, is necessary to accommodate this large root mass. Regular use of root tabs is highly recommended to prevent nutrient exhaustion and maintain the plant's robust structure.

Column fertilization

Recommended

It draws a significant amount of nutrients from the water column, making liquid fertilization very effective. Potassium supplementation is particularly critical to prevent the common pinhole issue in older leaves. General all-in-one fertilizers usually provide sufficient nutrition for this hardy species.

Root fertilization

Recommended

While it thrives on column dosing, it also develops a massive, deep root system and benefits from a rich substrate. Root tabs can provide a long-lasting nutrient reserve, resulting in significantly thicker stems and larger leaves. A strong root system also helps anchor this large plant securely.

Trimming

Occasional

Trimming is essential and frequent due to its rapid growth. You can cut the stem anywhere; the remaining lower portion will readily sprout multiple new side shoots, creating a very bushy appearance. The thick stems can be tough, so use sharp, sturdy scissors to avoid crushing the plant tissue.

Propagation

Cuttings

Propagation is extremely simple and foolproof; just cut a stem and plant it in the substrate. Almost any piece of the stem with a node will root and grow into a new plant. You can also replant the side shoots that develop after trimming the main stem.

Sensitivity

Moderate

This plant is incredibly hardy and tolerates a wide range of water parameters, making it excellent for beginners. It is not sensitive to typical pH or hardness fluctuations. The main issue to watch for is potassium deficiency, which is easily remedied with proper fertilization.

Layout role

Midground, Background

It serves as an excellent, fast-growing background filler that quickly establishes a green, jungle-like look. Its large leaves provide great hiding spots for fish and breaking up sightlines in community tanks. It is also very effective at taking up excess nutrients, helping to combat algae.