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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.
Unlike more advanced plants, mosses have a dominant haploid life stage. That is, the moss that you see is the gametophyte and only contains one set - rather than the normal two sets - of chromosomes. The haploid stage starts with a spore. This can either be a male or female spore. The male spore will develop into a mature gametophyte that contains structures to make male gametes.