How do I get Red Myrio to turn red instead of green?

It needs strong light, CO2 injection and an iron-rich fertiliser. In low to medium light it stays green or bronze and grows thin; with all three it takes on red-orange tones, strongest at the tips.

Is Red Myrio a good plant for beginners?

No. Red Myrio is an advanced plant. It needs CO2 injection, strong light and an iron-rich fertiliser to grow well and hold its colour. Without them the stems grow thin and green and drop their lower leaves, and in low light it often melts.

How do I trim and propagate Red Myrio?

Cut stems just above a node once they near the surface and replant the trimmed tops directly into the substrate; they root quickly. Topping every few weeks keeps the plant bushy instead of leggy and thin.

Myriophyllum Tuberculatum (Red Myrio): Buy Online

Description

Myriophyllum Tuberculatum, often sold as Red Myrio, is a finely-divided feathery stem plant that takes on red-orange tones under strong light, adding delicate texture and warm colour to background plantings. It pairs beautifully with broad-leaved plants for contrast. Grows best with strong light and consistent CO2/nutrients; trim and replant tops to keep growth dense rather than leggy.

What you get: one bunch of about 8–12 stems, similar to the photo.

New to stem plants? See our guide to the best stem plants for beginners for care basics and comparisons.

Care at a glance

Placement: Background focal group
Light: High
CO₂: Needed
Temperature: 22–28 °C
Growth: Fast in good conditions
Difficulty: Hard (advanced plant)

Strong light and iron-rich fertiliser keep Red Myrio orange-red; in low light it turns green and thin. Read the full Red Myrio care guide for planting, trimming and troubleshooting tips.

Compare light, CO2, growth rate and difficulty for every plant we stock in the aquarium plant care chart.

Frequently Asked Questions

Does Myriophyllum need CO2?

For Red Myrio, yes. It is an advanced plant, more demanding than most green stem plants, and it needs CO₂ injection to grow well and hold its red colour. Without CO₂ it can survive for a while under strong light with iron-rich fertiliser, but stems usually grow thin, turn green or brownish and drop their lower leaves. In low light without CO₂ it often melts. Read why Red Myrio stays green for fixes.

What is the common name for Myriophyllum?

The genus Myriophyllum is commonly called water milfoil, after its fine, feather-like leaves. This species, Myriophyllum tuberculatum, is sold in the aquarium trade as Red Myrio, Red Myriophyllum or Red Foxtail. It is a different plant from parrot’s feather (Myriophyllum aquaticum), a pond plant that grows best with its tips above the water. See our guide to other red aquarium plants.

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