Water Sprite (Ceratopteris thalictroides)

Water Sprite (Ceratopteris thalictroides) is a fast-growing, versatile aquarium plant known for its delicate, fern-like leaves and vibrant green coloration. Its light, airy appearance adds a soft, natural texture to aquascapes while helping create a balanced, healthy environment.

Widely distributed across tropical regions worldwide, this plant can grow rooted in the substrate or floating at the surface, making it highly adaptable to different aquarium styles. Its finely divided leaves provide excellent cover for fish, fry, and shrimp, while also helping to diffuse light and reduce algae growth.

Water Sprite thrives in a wide range of conditions and is especially valued for its rapid growth and nutrient uptake, making it an excellent choice for beginners and for stabilizing new aquariums. With regular trimming, it can be shaped into a dense background plant or allowed to float freely for a more natural look.

Key Features

• Fine, fern-like, bright green leaves
• Fast-growing and highly adaptable
• Can be planted or left floating
• Provides shelter for fish and shrimp
• Helps absorb excess nutrients
• Softens lighting when floating

Care & Growing Conditions

• Lighting: Low to moderate (higher light increases growth rate)
• Temperature: 68–82°F
• pH: 6.0–7.5
• Water Flow: Low to moderate
• CO₂: Not required
• Propagation: Adventitious plantlets forming on leaves

Tip: Regular trimming prevents overcrowding and encourages bushier, more compact growth.

Ideal Uses

• Background plant
• Floating plant for shade and cover
• Beginner-friendly planted tanks
• Fry and shrimp protection
• Nutrient control in new aquariums

Plant Details

• Scientific Name: Ceratopteris thalictroides
• Common Name: Water Sprite
• Plant Type: Stem/fern-like plant
• Origin: Tropical regions worldwide (cosmopolitan)
• Growth Rate: Fast
• Placement: Background or floating
• Difficulty: Easy
• Max Height: 25 inches