Myriophyllum mattogrossense

Species description

Care, breeding and tankmates

Plant profile

Placement

Midground

It is an excellent choice for the midground or background of the aquarium. Its ability to branch out heavily means it quickly forms very dense bushes that can conceal equipment or harsh hardscape transitions. Careful placement allows it to be shaped into beautiful, neat mounds.

Botanical form

Stem

The plant features vivid light green, finely pinnate leaves arranged in whorls around a reddish or light green stem. Its most distinctive trait is its propensity to branch profusely from almost every node, even without trimming. This gives it a uniquely dense and bushy botanical form.

Growth

Fast

This species is famous for its very fast growth rate when provided with good lighting and CO2. It grows both vertically and laterally, rapidly filling in empty spaces. Frequent and sometimes aggressive pruning is required to keep its shape and prevent it from overgrowing.

Substrate

High

Column fertilization

Recommended

It is an extremely efficient column feeder due to its massive leaf surface area. Daily dosing of a comprehensive liquid fertilizer is highly recommended to keep up with its fast metabolic rate. Adequate water column nutrients are key to maintaining its bright green appearance.

Root fertilization

None

While it draws heavily from the water, a high-quality aquasoil provides a robust backup nutrient source. Good substrate encourages strong root development, which is important for anchoring such a fast-growing, buoyant plant. Root tabs can be used if the substrate is old.

Trimming

Occasional

Trimming is essential and should be done often. You can cut the stems quite low, and they will rebound with multiple new shoots, further increasing the bush's density. The cut tops can be replanted, but often you will have more than you need.

Propagation

Cuttings

Propagation is exceptionally easy through stem cuttings or simply detaching the numerous side shoots. The plant practically propagates itself by constantly branching out. Just plant any healthy snippet in the substrate, and it will quickly take root.

Sensitivity

Moderate

It is generally very robust but demands good lighting; lower sections will quickly rot if they are shaded by the upper canopy. Excellent water flow is required to deliver nutrients to the dense interior of the bush. It rarely suffers from algae if it is growing actively.

Layout role

Midground, Background

M. mattogrossense is highly prized in aquascaping for its ability to create dense, bright green thickets. It offers a spectacular contrast when placed next to red plants or dark rocks. Its fine texture and ability to be shaped make it a staple in Dutch-style aquariums.