Salvinia minima (Water Spangles)

Introduction

Salvinia minima, frequently referred to as Water Spangles, is a small, free-floating aquatic fern native to South America. It has become a staple in the aquarium hobby due to its attractive, textured leaves and its incredible utility in maintaining water quality and combating algae.

Appearance and Characteristics

This floating plant features paired, oval-shaped leaves that sit gracefully on the water's surface, covered in tiny, stiff hairs (trichomes) that repel water and keep the plant buoyant. Beneath the surface, modified leaves act as trailing roots, absorbing nutrients directly from the water column and providing safe, natural havens for shrimp and fish fry.

Care and Maintenance

Salvinia minima is highly adaptable and thrives in a wide range of conditions, making it perfect for beginners. It grows rapidly under moderate to high lighting but can easily survive in lower light setups. Being a floating plant, it has direct access to atmospheric CO2, making supplemental CO2 injection unnecessary. Regular culling is recommended to prevent it from completely covering the surface and blocking vital light to submerged plants below.