Floating Fern Care Guide
Salvinia natans · Freshwater Plant

What Floating Fern look like
Salvinia natans, commonly known as Floating Fern, exhibits a distinctive morphology characterized by its small, oval leaves that typically measure between 0.5 to 1 inch in length. These leaves are arranged in pairs and lie flat on the water's surface, forming dense mats that can cover large areas. The upper surface of the leaves is adorned with tiny hair-like papillae, which provide a unique bumpy texture that enhances its water-repellent properties. The vibrant green coloration of the leaves contributes to its aesthetic appeal. Additionally, a modified submerged leaf, resembling a hairy root, extends below the water surface, aiding in buoyancy and nutrient absorption. This species does not exhibit sexual dimorphism, and its maximum adult size ranges from 3 to 15 inches when considering the spread of its floating mats.
Behavior & temperament
Floating Fern is primarily a surface-dwelling aquatic plant that thrives in still or slow-moving waters. It is not a solitary species; rather, it tends to form extensive floating mats that can dominate the water column, providing habitat and shelter for various aquatic organisms. Salvinia natans reproduces asexually through vegetative propagation, where fragments of the plant can develop into new individuals. This fern does not exhibit aggressive behavior, as it primarily relies on its buoyant structure for survival and does not compete aggressively for resources.
Diet & feeding
As a photosynthetic organism, Salvinia natans derives its nutrients from sunlight, utilizing chlorophyll to convert light energy into chemical energy. In captivity, it requires a well-lit environment to thrive, with sufficient light intensity to support its photosynthetic needs.
Behind the name
Salvinia (named after the botanist, John Ray, who used the Latin term 'salvinus' for ferns); natans (Latin for 'floating').
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Floating Fern?
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