Marimo moss balls | Highly purifying aquatic plant for an aquarium or pond
Chris van der Velde
Marimo moss balls Are round aquatic plants that live at the bottom of the water. Originally from Japan, here they believe that the moss ball brings good luck due to its cleansing effect. If you want to learn all about this interesting aquatic plant, read on quickly!
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All about moss balls
- What is the effect of a moss ball?
- How old can moss balls get?
- Why is it that moss balls sometimes float?
- How big can moss balls get?
What is a moss ball?
A moss ball is a water purifying oxygen plant from the family 'Cladophoraceae'. Moss balls are native to Japan where they are called Marimo. The plants got the name moss ball, but actually the balls are not composed of moss at all but of green algae. The moss balls live at the bottom of the pond or aquarium where they ensure that the bottom of the water pool is cleaned. The movement of the water slowly rolls the moss ball forward, this way the moss ball can clean up waste products from the bottom.
What is the effect of a moss ball?
Moss balls have a purifying effect in the water by removing waste products and releasing oxygen to the pond water. Moss balls are made of algae and seaweed, when the moss ball rolls over the bottom of your pond or aquarium it removes waste products as well as excess algae. The ideal thing about the moss ball is that it is hardy, this means it survives year in, year out and continues to grow! This make moss balls, regardless of the kind of pond you have, the ideal addition to the pond!
How old can moss balls get?
Marimo moss balls can live up to 100 years, rolling back and forth on the bottom of the pond allowing them to keep their round shape. Moss balls grow very slowly, at about 5 millimeters per year. A fun fact about the moss ball is that it can multiply, this is because it falls apart over time and can continue to grow split up.
Why is it that moss balls sometimes float?
Moss balls can trap air bubbles due to the movements they make across the bottom of the pond. It can happen that this air bubble makes the moss ball float to the top layer of the pond. When this happens you can take moss ball out of the water and rinse it under the tap, then place the moss ball back into the pond water and squeeze it so that all the air leaves the moss ball. Marimo will then sink to the bottom of the pond by itself.
How big can moss balls get?
Moss balls do not grow quickly, but because they can grow very old, they can reach a size of about 10 centimeters over the years. Because moss balls only grow 5 millimeters per year, this can only take a while ... so you will have to be patient.
Moss balls as decoration
Besides being very useful in the pond, moss balls are also very special aquatic plants due to the high age they can reach and their cleansing function. Because from the Japanese culture it is believed that moss balls bring good luck, the moss ball is often given as a gift, for example in a beautiful ecosystem!
Frequently asked questions about Marimo moss balls
Moss balls need no care in a pond, as they take care of themselves to keep them and the water healthy.
Moss balls in an aquarium require a little more care. When the water in the aquarium is changed, it is recommended to rinse the moss balls under the tap so that the dirt from the aquarium water is also rinsed right out of the moss balls.
Simon van der Velde
Pond specialist and aquatic plant grower since 1986
Simon's vision is to let nature do its work in your pond. No need to buy all kinds of measuring equipment and water improvers. If the fish are swimming nicely and the plants are growing well, then the water in the pond is of good quality. With a good planting plan and the right approach, you can save a lot of money and maintenance, and ensure a clear, biologically balanced pond that becomes more beautiful every year.