• Tropica Spirodela polyrrhiza 1-2-GROW Tropica
  • Tropica Spirodela polyrrhiza 1-2-GROW Tropica
  • Tropica Spirodela polyrrhiza 1-2-GROW Tropica
  • Tropica Spirodela polyrrhiza 1-2-GROW Tropica
  • Tropica Spirodela polyrrhiza 1-2-GROW Tropica
1 5

Tropica Spirodela polyrrhiza 1-2-GROW

Large disc-frond Giant Duckweed Spirodela polyrrhiza in Tropica tissue culture

Large disc-frond Giant Duckweed Spirodela polyrrhiza in Tropica tissue culture

Tropica

£7.99
£7.99
  • Hurry, only 3 items left in stock!
Description

Spirodela polyrrhiza is the Giant Duckweed — one of the larger true duckweed species, producing disc-shaped floating fronds in bright green with reddish-purple undersides and multiple trailing root filaments. Though larger than common duckweed, it is still a compact floating plant that moves naturally with surface currents and provides useful surface coverage and nutrient absorption in planted aquariums and shrimp tanks.

It is extremely easy and undemanding, growing without CO2 under low to medium light in a very wide range of water conditions. Fast-growing under good conditions, it multiplies rapidly by division and needs periodic thinning to prevent full surface coverage from blocking light to submerged plants. Shrimp and small fish take shelter beneath the fronds and forage on the trailing root structures.

Supplied as a Tropica 1-2-GROW! tissue culture cup, this plant arrives completely free from snails, pest algae, and pesticide residue. Remove from the cup, rinse the gel and float on the water surface. Suits aquariums from 15 litres upward — an easy and distinctive floating duckweed that is fully shrimp safe and useful in shrimp tanks and planted aquariums.
Quick Facts

Common name:Giant duck weed

Position in Aquarium: Floating

Growth rate: Fast

Grows up to: 0.2 cm

Pot size: 7 cm

Origin: North America
Plant Sizes

The image of the plant you'll be receiving is just an example of what you can expect. Each plant is unique and may vary in size and shape, so it won't be an exact match to the photo. If we provide a size guide, keep in mind that it's just an estimate and that plants can vary in size depending on the time of year.
WHAT TO EXPECT

Tissue cultured plants are supplied young and grown in a sterile environment, so they arrive free from snails, algae and pesticide residue. They may look smaller on arrival, but each cup contains multiple plantlets designed to be divided and planted out, where they establish quickly with minimal melt and grow into place.
Tropica Spirodela polyrrhiza 1-2-GROW Tropica
Tropica Spirodela polyrrhiza 1-2-GROW Tropica
Tropica Spirodela polyrrhiza 1-2-GROW Tropica
Tropica Spirodela polyrrhiza 1-2-GROW Tropica

Product Details

1. Grown in a laboratory

Tissue Cultured Plants are unique in so much as they are grown in a laboratory and not a greenhouse. As a result of this, a cast iron guarantee is offered which is 100% so snails and no pesticides.

2. How to handle them

They're a bit different from potted plants because they're grown in an agae solution that contains nutrients and hormones to encrougage plants to grow. Some agar is liquid, others are more solid depending on what the growers prefers. Regardless once they arrive with you, acclimatise to room temperature and then rinse under luke warm tap water. Then plant up.

3. Pot sizes

Nearly all TC pots are 5cm in diameter and the pots will range in fullness depending on many factors such as the natural growth speed of the plant and the time the grower has held them for. Sometimes the pots are exceptionally full and sometimes not so full - something we cannot control. But either way, they're still really good value when you look at the overall plant mass.

Product FAQs

Helpful details before you buy.

How is Spirodela polyrrhiza different from common duckweed?

It is the Giant Duckweed — with larger, disc-shaped fronds and reddish-purple undersides compared to common tiny duckweed. Still compact by floating plant standards but noticeably larger and more decorative.

Does it need CO2?

No. It floats on the surface and absorbs what it needs from the air and water. No CO2 supplementation is needed.

Does it grow fast?

Yes. It multiplies rapidly by division and needs periodic thinning to prevent it from covering the entire surface.

Is it safe for shrimp tanks?

Yes. As a Tropica 1-2-GROW! tissue culture plant it arrives free from snails, algae, and pesticide residue — excellent for shrimp aquariums.

What are the reddish undersides?

The underside of each frond is reddish-purple and the multiple root filaments are clearly visible below — a distinctive and attractive characteristic of this species compared to plain green duckweed.

Let customers speak for us

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Absolutely fantastic plants and service

Absolutely fantastic plants and service, I've been buying from aquaessentials since 2017 and will continue to do so, plants are super healthy and always look great in the tanks, the website is great and they also list alternatives to the plants you want incase they are sold out,
I would recommend them to everyone

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Absolutely healthy lovely plants again i never shop anywhere else thank you

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What customers think about the store

Customers praise the store for exceptional plant quality, fast delivery, and excellent packaging. Plants arrive healthy, well-rooted, and true to description. Service is consistently reliable with prompt responses. Popular among aquarium hobbyists for diverse ...

AI-generated from customer reviews.

Delivery Packaging Plants Quality
  • Tropica Spirodela polyrrhiza 1-2-GROW Tropica
  • Tropica Spirodela polyrrhiza 1-2-GROW Tropica
  • Tropica Spirodela polyrrhiza 1-2-GROW Tropica
  • Tropica Spirodela polyrrhiza 1-2-GROW Tropica
1 5

Tropica Spirodela polyrrhiza 1-2-GROW

Large disc-frond Giant Duckweed Spirodela polyrrhiza in Tropica tissue culture

Easy care Shrimp safe Low light CO2 not required
£7.99
£7.99
  • In stock — 3 available

In-stock orders normally dispatch before 4pm, Monday–Friday. Delivery details

Tropica Spirodela polyrrhiza 1-2-GROW Tropica
Tropica Spirodela polyrrhiza 1-2-GROW Tropica
Tropica Spirodela polyrrhiza 1-2-GROW Tropica
Tropica Spirodela polyrrhiza 1-2-GROW Tropica

Complete your setup

Useful additions for your aquarium

Care essentials chosen for this plant

Healthier plants
Brighter results
Useful additions for planting day Carefully packed with your plants Specialist aquarium plant care
Bundle offers

About this plant

Spirodela polyrrhiza is the Giant Duckweed — one of the larger true duckweed species, producing disc-shaped floating fronds in bright green with reddish-purple undersides and multiple trailing root filaments. Though larger than common duckweed, it is still a compact floating plant that moves naturally with surface currents and provides useful surface coverage and nutrient absorption in planted aquariums and shrimp tanks.

It is extremely easy and undemanding, growing without CO2 under low to medium light in a very wide range of water conditions. Fast-growing under good conditions, it multiplies rapidly by division and needs periodic thinning to prevent full surface coverage from blocking light to submerged plants. Shrimp and small fish take shelter beneath the fronds and forage on the trailing root structures.

Supplied as a Tropica 1-2-GROW! tissue culture cup, this plant arrives completely free from snails, pest algae, and pesticide residue. Remove from the cup, rinse the gel and float on the water surface. Suits aquariums from 15 litres upward — an easy and distinctive floating duckweed that is fully shrimp safe and useful in shrimp tanks and planted aquariums.

Product FAQs

How is Spirodela polyrrhiza different from common duckweed?

It is the Giant Duckweed — with larger, disc-shaped fronds and reddish-purple undersides compared to common tiny duckweed. Still compact by floating plant standards but noticeably larger and more decorative.

Does it need CO2?

No. It floats on the surface and absorbs what it needs from the air and water. No CO2 supplementation is needed.

Does it grow fast?

Yes. It multiplies rapidly by division and needs periodic thinning to prevent it from covering the entire surface.

Is it safe for shrimp tanks?

Yes. As a Tropica 1-2-GROW! tissue culture plant it arrives free from snails, algae, and pesticide residue — excellent for shrimp aquariums.

What are the reddish undersides?

The underside of each frond is reddish-purple and the multiple root filaments are clearly visible below — a distinctive and attractive characteristic of this species compared to plain green duckweed.