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1212 Canterbury Rd, Roselands, NSW 2196
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Open by appointment
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$4.99 AUD
Shipping calculated at checkout.
Portion size: 1-2cm diameter pup
Pickup available at 1212 Canterbury Road
Usually ready in 2-4 days
Marimo translates from Japanese as “ball seaweed.” Despite often being called moss balls in English, they’re actually a unique form of algae.
Commonly kept as decorative pets in small jars, Marimo also make an excellent addition to aquariums thanks to their unique appearance and minimal care requirements. With clean water and low to moderate lighting, Marimo can live for decades—some have even been known to live over 100 years, and wild specimens in Japan have been recorded at more than 200 years old.
One of the last natural habitats for Marimo is Lake Akan in Japan, where they can grow to over 30 cm across—a size that can take many decades to reach. In a typical home aquarium, they grow at about 0.5 cm per year, usually topping out around 13 cm.
In the wild, Marimo stay round thanks to gentle wave movements that roll them along the lakebed. To maintain their shape in an aquarium, simply give them a gentle roll in your hands every few weeks.
Scientific Name:
Aegagropila linnaei
Common Names:
Marimo Ball, Moss Ball
Description
Despite often being called moss balls, they are actually balls of algae. Because of their unique velvety green, spherical appearance, they are often kept as decorative pets in jars.
Key Features
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Unique appearance: Resilient, adaptable and low-maintenance, making it popular for outdoor ponds as well as aquariums
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Minimal requirements: No substrate required
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Long lifespan: Marimo balls can live up to 200 years in their natural habitat and 100 years in tanks. They grow at approximately 0.5cm per year to a maximum of 13cm in diameter in fishtanks and 30cm in their natural lake habitats.
Plant Profile
| Placement: | Midground, Foreground |
| Lighting: | Moderate |
| Temperature: | 18–24°C |
| CO₂ Requirement: | Optional |
| pH Range: | 6.0–8.0 |
| Substrate: | No substrate required |
| Growth Rate: | Slow |
Care Instructions
In the wild, Marimo stay round thanks to gentle wave movements that roll them along the lakebed. To maintain their shape in an aquarium, simply give them a gentle roll in your hands every few weeks.
Please note: Our tanks may contain other aquarium 'pests'. If you wish to keep your aquarium snail and pest free, rinse plants gently before adding them to your tank.