![]() In their mountainous home region water temperatures are cold. Most aquarists don’t know this but they grow only in cold water habitats. \Water temperature is the most important element to successful Marimo moss ball care. Marimo ball care is not advanced but they will die if you don’t meet their temperature and nutrient needs. Because they take so long to cultivate, wild harvesting is common. It will take four or five years to grow them large enough to sell. These moss algae balls grow one-half to one centimeter per year. But large production firms can speed up growth with fertilizers, high lighting, and ideal water parameters.įertilizers have little to no effect on the growth of a Marimo Moss ball. Java ferns and Anubias also have slow growth rates. The primary reason for the price is the slow growth of this algae. So why does this algae cost so much when compared to common aquarium plants? But for this price, you could get multiple java ferns, multiple Anubias, or several large bunches of Brazilian waterweed. In the big picture, this isn’t really that much. They are often $6-8 for just one Marimo moss ball, or $10 for three mini moss balls. When you first go to buy a Marimo moss ball, you may find yourself surprised at the price. Rot is the main killer of Marimos in aquariums, and it is caused by improper care or water parameters. Faux trees with them are also popular with aquascapers.Įven though Marimo ball algae is hardy, it is prone to rot under certain circumstances. You can also create attractive “grassy” areas of the tank by gluing multiple Marimo balls to one area. Just know that this can cause long-term damage because they evolved to roll freely with water currents. But it is possible to glue the Marimo moss balls to decorations. Marimo moss balls won’t attach themselves to decorations or other parts of the tank. It can only grow in clumps and does not attach itself to other objects in a fish tank. Marimo moss balls don’t grow fast, and they won’t spread to other parts of the tank. Marimo balls are not capable of spreading in your fish tank and growing like normal algae does. Since they are a kind of algae won’t they grow out of control and green every hard surface? Each round shape is algae all the way through.Īquarists sometimes worry about adding marimo moss balls to an aquarium. Many circular plant and fungal growths have a center. As they roll about they take on a spherical growth form. Patches of algae sometimes get caught up in the slow currents along the lake bottom. They do grow flat on hard surfaces, like other types of algae. Moss balls are found in cold, alpine lakes in Japan and Northern Europe. The word “marimo” is a Japanese term that translates to “algae ball”. Marimo moss balls are a spherical form of cladophora algae.
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