Azolla

Azolla

Azolla is a tiny, fast-spreading floating fern that forms a mat on the water’s surface.

Its leaves may turn reddish under high light. It’s great for shade, nutrient absorption, and natural-style tanks, but can quickly cover the surface if not managed.

• Placement: Floating
• Lighting: High
• CO₂: Not required
• Care: Tiny floating fern; can turn reddish under strong light. Rapid growth; remove excess to avoid clogging.