Salvinia auriculata

Salvinia auriculata – Floating Aquarium Plant - Easy surface plant for aquariums

Salvinia auriculata, also known as Water Spangles, is a fast-growing, floating aquarium plant ideal for shrimp tanks, breeding tanks, and low-tech setups. With its small, oval leaves and fuzzy surface texture, it provides excellent shade, surface cover, and nutrient export.

This species helps reduce algae by absorbing excess nutrients and blocking strong overhead light. Its dense floating mats are a natural refuge for fry and shrimp, offering protection and grazing surfaces.

Unlike duckweed, Salvinia auriculata is larger and easier to manage, with leaves that won’t disintegrate easily or clog filters. It does not require CO₂ or substrate and grows well under low to medium light.

Gently thin or scoop to prevent full surface coverage, and ensure proper gas exchange. A favourite in natural-style aquariums, it complements mosses, ferns, and other epiphytes perfectly.

✔ Ideal for: Aquariums, Betta tanks, nano setups, garden ponds
✔ Benefits: Absorbs excess nutrients, reduces algae, oxygenates water
✔ Placement: Free-floating – no planting needed
✔ Light Requirement: Moderate to high
✔ Growth Rate: Fast-growing, great for tank cycling and surface cover

Is Salvinia auriculata easy to grow?
Yes - it thrives in low-tech conditions and requires no substrate or CO₂.

Will it help control algae?
Yes - it absorbs excess nutrients and limits light exposure, both of which help reduce algae.

Can it be used in shrimp tanks?
Absolutely - it provides great shelter and microfauna-rich surfaces for shrimp to graze.

How do I prevent it from covering the whole surface?
Regularly thin it out with a net and maintain some open space for light and oxygen exchange.