• Moss
  • Easy
  • Low–medium light
  • CO₂: not needed

Willow moss

Fontinalis antipyretica · Common water moss

Easy moss for low and medium light. It grows without added CO₂. It is used in the foreground, can form a carpet, and grows attached to rock or wood. Growth is slow, and it is rated easy to keep.

Single source · Reviewed Oct 3, 2026

Buy from $7.99

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Willow moss (Fontinalis antipyretica) strands growing under water in a poolPhoto: W.carter, CC BY-SA 4.0
Willow moss (Fontinalis antipyretica) strands growing under water in a pool

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Willow moss (Fontinalis antipyretica) close-up of the leafy strandsPhoto: AnRo0002, CC0
Willow moss (Fontinalis antipyretica) close-up of the leafy strands

At a glance

Plant type
Moss Foreground, Carpet, On rock or wood
Light
Low, Medium
CO₂
Not needed
Difficulty
Easy Growth rate: Slow
Height
Not recorded
Water
64–77 °F (18–25 °C) pH 6–7.5
Leaf color
  • Green
Propagation
Division
Botanical name
Fontinalis antipyretica

In the tank

Our sources don't record anything else about this plant in the tank.

Origin

Native to Worldwide

Sources

Where to buy

Prices rechecked daily
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    $7.99Checked Nov 14, 2026

Prices checked Nov 14, 2026.

All photos

  • Willow moss (Fontinalis antipyretica) strands growing under water in a pool Photo: W.carter, CC BY-SA 4.0
    Willow moss (Fontinalis antipyretica) strands growing under water in a pool
  • Willow moss (Fontinalis antipyretica) close-up of the leafy strands Photo: AnRo0002, CC0
    Willow moss (Fontinalis antipyretica) close-up of the leafy strands

Questions

Does Willow moss need strong light?

Willow moss grows in low or medium light.

Does Willow moss need CO₂?

No. Willow moss grows without added CO₂.

Where does Willow moss go in the tank?

Willow moss is used in the foreground, carpet, and on rock or wood.