Myriophyllum sp. "Roraima 10 stems

Ideal aquarium parameters

Temperature: 20–28 °C (68–82 °F)

pH: 5.5 – 7.5

Hardness (GH): 1 – 10 dGH (prefers soft water)

KH: 0 – 6

Light: medium to high (higher light = more compact growth and better coloration)

CO₂: recommended, but not strictly required

Growth rate: fast

Placement: background or midground

Fertilization: medium to high (especially nitrates, iron, and micronutrients)

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Characteristics and growth behavior

A submerged stem plant with finely feathered, delicate leaves

Can grow very densely, forming bush-like structures

Under optimal conditions, shows bright green tones with reddish or pinkish tips

Fast-growing and requires regular trimming

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Interesting facts

The name “Roraima” refers to the Roraima region (Brazil, Venezuela, Guyana), known for its unique biodiversity

It is often considered an ornamental selection related to the Myriophyllum aquaticum / propinquum group, though its exact taxonomy is not fully settled

Commonly used in nature-style aquascaping to create dense underwater “forest” effects

If left untrimmed, it can quickly shade and outcompete other plants

Young shoot tips are the most decorative and may turn reddish under strong lighting conditions