Myriophyllum aquaticum "Green"

Species description

Care, breeding and tankmates

Plant profile

Placement

Midground

Due to its rapid growth and potential size, it is best placed in the background of the aquarium. It can form dense thickets that provide excellent cover for fish and shrimp. In shallower tanks, it will quickly reach the surface and can be grown emerged.

Botanical form

Stem

It features finely divided, pinnate leaves arranged in whorls around the stem. The 'Green' variant lacks the reddish stems or hues of the standard form, remaining purely light green. The delicate, feathery appearance gives it a soft texture.

Growth

very-fast

This variant exhibits an extremely fast growth rate, especially with high light and CO2. It is one of the fastest-growing stem plants available in the hobby. Regular maintenance is necessary to prevent it from overtaking the tank.

Substrate

Low

Column fertilization

Recommended

Heavy column feeding is required to support its rapid biomass production. A comprehensive liquid fertilizer with ample macronutrients should be dosed regularly. The plant primarily absorbs what it needs directly through its finely structured leaves.

Root fertilization

None

While root feeding is secondary to column fertilization, a fertile substrate supports overall vitality. Root tabs can provide a backup nutrient source if water column levels drop. Good substrate ensures the fast-growing stems remain securely anchored.

Trimming

Occasional

Frequent and aggressive trimming is required. You can cut the plant very low, and it will quickly rebound with multiple new shoots. To maintain a neat appearance, replant the tops and discard the older, often bare lower stems.

Propagation

Cuttings

Propagation is incredibly easy through stem cuttings. Simply snip a section of the stem and plant it into the substrate. Almost any piece with a few healthy whorls of leaves will successfully root and grow.

Sensitivity

Moderate

It is generally very hardy but may suffer if shaded by other plants or its own overgrown canopy. Lower leaves tend to rot or fall off if light cannot penetrate the dense upper growth. Good water flow prevents debris from accumulating in its fine leaves.

Layout role

Midground, Background

This plant provides a wonderful, soft green texture for the background. It contrasts perfectly against red plants or solid hardscape materials. Its rapid growth makes it an excellent choice for absorbing excess nutrients in newly set up aquariums.