Description

Floating Watermoss (Salvinia natans)
Overview
Floating Watermoss is a delicate, free-floating aquatic plant with small, fuzzy green leaves that form dense mats on the water surface. It provides natural shade, reduces algae growth, and offers shelter for fry and shy fish. Its light, airy texture adds a natural and dynamic element to aquariums, ponds, and paludariums.
Origin
Native to Europe and Asia, commonly found in calm freshwater bodies such as ponds, lakes, and slow-moving rivers.
Lighting & Placement

Light: Low to medium

Placement: Surface floating plant

Notes: Grows on the water surface and spreads quickly; can be thinned to control coverage.

Feeding

Absorbs nutrients directly from water column

Benefits from liquid fertilizers if nutrient-poor water

No CO₂ required

Tank Mates
Safe for all peaceful freshwater species:

Tetras, guppies, rasboras

Shrimp and snails

Provides hiding places for fry and surface-dwelling fish

Aggression
None—completely peaceful and non-invasive.
Experience Level
Beginner-friendly. Easy to care for, fast-growing, and low-maintenance.
Water Parameters

Temperature: 64–82°F (18–28°C)

pH: 6.0–7.5

Hardness: Soft to moderately hard

Notes: Regular thinning prevents complete shading of submerged plants and maintains water flow.

Floating Watermoss (Salvinia natans) is an attractive and functional surface plant that enhances aquariums by providing shade, shelter, and a natural look while being simple to maintain.