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2. There are Marimo Moss Balls and Moss balls (java rolled onto a styrofoam ball). Marimo moss balls are pretty cool, low maintenace, and I have several of them for a very long time. All plants utilizes nitrates. In my 100g, which is heavily planted, nitrates don't show up when I test the water.arimo moss balls are pretty cool, low maintenace, and I have several of them for a very long time. All plants utilizes nitrates. In my 100g, which is heavily planted, nitrates don't show up when I test the water.
Mosses are small flowerless plants that usually grow in dense green clumps or mats, in damp or shady locations. The individual plants are usually composed of simple, one-cell thick leaves, covering a thin stem that supports them but does not conduct water and nutrients (nonvascular).hey do not have seeds or any vascular tissue. At certain times they produce thin stalks topped with capsules containing spores. They are typically 1â10 cm (0.4â3.9 in) tall, though some species are much larger, like Dawsonia, the tallest moss in the world, which can grow to 50 cm (20 in) in height.