Marimo Moss Balls by Splashy Fish
Marimo Moss Balls grow by absorbing nitrates, phosphates, and other organic waste from the water. As they grow, they purify the water they live in and provide oxygen for the aquatic life around them. Marimo require no care whatsoever in a freshwater tank—they are the easiest aquatic plants in the world. Moss Balls don’t require a green thumb and are not a high-maintenance plant.
This velvety green orb is neither a moss nor a rock, but a species of green algae known as Aegagropila linnaei. It gets its unique shape from tumbling about the bottom of freshwater lakes. The nickname “Marimo” roughly translates from Japanese as “water plant that’s kind of like a bouncy ball.”
We recommend lightly rolling the Marimo ball in your hands every time you add it to your aquarium to help it settle and avoid damage.
| Specification | Detail |
|---|---|
| Species | Aegagropila linnaei |
| Color | Velvety green |
| Size | Approx. 2.5 cm in diameter |
| Origin | Japan |
| Water Type | Freshwater |
FAQ
How do Marimo Moss Balls improve water quality?
Marimo Moss Balls absorb nitrates, phosphates, and other organic waste from the water, helping to purify it naturally. They also release oxygen, which benefits the aquatic life in the tank.
Do Marimo Moss Balls need sunlight or special lighting?
No, Marimo Moss Balls do not require sunlight or special lighting. They thrive in low-light freshwater environments.
Can Marimo Moss Balls be used in saltwater tanks?
Please contact customer service
William Wright –
I added a Marimo Moss Ball to my small aquarium and it has been thriving for over two months. The water looks clearer and the fish seem more active. No effort needed—just place it in and forget about it.
Carl Smith –
Love how easy this is to maintain. I didn’t have any experience with aquarium plants before, but the Marimo just works. It’s soft, looks beautiful, and helps keep the water clean.
Cameron James –
The ball arrived in perfect condition. It’s a bit small, but it fits well in my tank. I rolled it gently as suggested and it settled nicely. I’ll definitely buy more for my larger tank.