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This item sold on June 25, 2012.

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This is a baby (nano) Marimo. Also known as a japanese moss ball. These moss balls are actually alqae, but are beneficial to tanks because the out-compete with other algae for food. They are useful for keeping fish tanks clean, and reduce ammonia. They can also be kept by themselves as a pet.

Marimo require minimal care. They can be placed in tap water and can live well in just that. They also do not require much light (too much will cause brown spots). Simply place them somewhere they can recieve daily ambiant light or just a little natural sunlight. Because of this, they make excellent office "pets" (I even name mine!).
Just change their water every couple of weeks, and make sure to turn them every now and then or they may start to become flattened on one side. You can also clean them on occassion by removing them from their water, placing them in a glass of clean water, and gently squeezing like a sponge.

"Place of Origin: Lake Akan in Japan
Natural Habitats: Native to Akan Lake in Japan; it is considered as national treasure declared as a natural monument. In its natural habitat; their ability to move around by using the undercurrents also rise to the surface in the morning and sink at night due to receive plenty of light to carry out photosynthesis is an interesting character of Moss Ball. Although these balls have been observed to grow to some degree growing in freshwater lakes and ponds in European countries and some other lakes in Japan; only in this particular lake they grow to be a noticeable size in perfect spherical shape.

How to care your marimo?
Domestic marimo grow in tap water at room temperature as long as the water is changed every one or two weeks (more frequently in summer and less often in winter). The marimo can be placed in the refrigerator in hot weather (above 25°C), but does not survive freezing. Photosynthesis occurs in normal household lighting, otherwise, indirect sunlight since the marimo is adapted for low light conditions only. If the marimo green color turns brownish it may recover without intervention, otherwise a very minimal amount of salt can be added as a suggested remedy.

So why marimo balls you ask.
" Excellent gift for your friend or loved ones to signify everlasting love....

The Japanese believe that Marimo will bring good luck. Hence, they grow it in a glass bottle with just some water & ceiling light. Water change is only required once every 2 weeks.

Marimo is a very popular plant in Japan. Currently protected by the authorities to prevent extinction. The growth rate of Marimo is about 5 mm per year. Hence a giant marimo is about 7 years old!

This plant does NOT cause algae problem. Live Plants is a natural biological filter to remove ammonia in aquarium.
Propagate by dividing into smaller pieces, which become spherical over time.
Negligible maintenance required.
No carbon dioxide injection required for healthy growth. " "

-taken from a public thread on Marimo History & Care

Live Marimo Moss Ball Nano Plant Desk Pet


  • Handmade item
  • Materials: moss ball, water, marimo
  • Ships worldwide from United States
  • Feedback: 26 reviews
  • Favorited by: 90 people