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Salvinia natans (Water Spangles) - Easy Floating Plant for Algae Control & Fry Protection

Fast-spreading floating fern — algae control and fry shelter

Regular price
£3.99
Regular price
Sale price
£3.99
    Description

    Salvinia natans (water spangles) is a free-floating aquatic fern producing small oval leaves covered in tiny water-repelling hairs that give the surface a distinctive velvety texture. It spreads rapidly across the water surface in suitable conditions, providing shade, nutrient uptake, and important surface cover for fish fry and shrimp in both aquariums and outdoor ponds.

    It grows in low to medium light without CO2 injection and adapts to a range of water temperatures. It prefers calm water surfaces — avoid positioning it where strong filtration or surface agitation will wet the leaves or push plants under the water, as this causes deterioration. In good conditions it spreads quickly and may need regular thinning to prevent it from covering the entire surface.

    Simply place on the water surface — no planting or attachment needed. It floats naturally and spreads freely from there. Remove a portion regularly to prevent total surface coverage and to maintain light levels for any submerged plants. Suitable for aquariums and outdoor ponds.

    Our Delivery Promise To You

    We pack every order carefully at our UK facility and dispatch quickly, so your plants and aquarium products reach you in the best possible condition.

    Order before 4pm Monday to Friday and we’ll dispatch the same day where possible. Most orders arrive within 1-2 working days.

    If something goes wrong in transit, get in touch and we’ll help put it right.

    Salvinia natans (Water Spangles) - Easy Floating Plant for Algae Control & Fry Protection
    Salvinia natans (Water Spangles) - Easy Floating Plant for Algae Control & Fry Protection
    Salvinia natans (Water Spangles) - Easy Floating Plant for Algae Control & Fry Protection
    Salvinia natans (Water Spangles) - Easy Floating Plant for Algae Control & Fry Protection
    Salvinia natans (Water Spangles) - Easy Floating Plant for Algae Control & Fry Protection
    Salvinia natans (Water Spangles) - Easy Floating Plant for Algae Control & Fry Protection
    Salvinia natans (Water Spangles) - Easy Floating Plant for Algae Control & Fry Protection
    Salvinia natans (Water Spangles) - Easy Floating Plant for Algae Control & Fry Protection

    Common Questions

    Is Salvinia natans easy to grow?

    Yes — it is one of the easiest floating plants available. No CO2, no soil, no planting needed. Just place it on calm water.

    Why is my Salvinia deteriorating?

    The most common cause is water movement wetting the leaves or pushing plants under the surface. It needs calm, still water and its leaves must stay dry on top.

    Does it help with algae?

    Yes — it absorbs excess nutrients and shades the water surface, both of which directly reduce conditions that favour algae.

    Is it safe for fish and shrimp?

    Yes, fully. The dense floating mat provides important cover for surface-dwelling fish and fry, and shrimp benefit from the shelter below.

    How do I stop it taking over?

    Remove a portion regularly. It can spread very quickly in good conditions so thinning every couple of weeks keeps it under control.