Marimo Moss Ball Care Guide

Why isn’t my marimo floating?

By nature, marimos float because they produce bubbles when bright UV light shines on their green, lush spherical surfaces. The bubbles act like buoy and carry them up vertically through the water column. At night, when the sun sets and it gets completely dark in their natural environment (read: the bottom of a lakebed), they release those bubble and sink back down.

How to Care for Marimo Moss Balls?

Roll your balls. You need to roll your moss ball every other week or so to make sure all sides of it receive light evenly. If you only allow one side to receive that the other side won’t grow and will probably start turning brown. If this happens to you, simply move it so that all sides of the sphere receive some degree of light.

Is your Marimo turning Brown, Gray, White, or Black?

Marimo moss balls are easy to care for and low-maintenance. Keep your marimo healthy. They’re generally pretty hardy and can withstand a range of temperatures, water conditions, and inhabitants. They can be fed on, they can be grown in cold water, they can be torn apart, and they can be grown in saltwater. They are definitely tough. However, there are some conditions that require attention and care.

How to Choose a Healthy Moss Ball?

Your moss ball should be full and green! Choosing a healthy marimo can be difficult, depending on where you buy your moss ball. You need to be on the lookout to make sure you’re choosing a healthy and genuine Marimo. Many stores actually carry fake moss balls because they look just like the real thing- whether intentional or not. So you need to be sure that you choose the right ball.

Where to Buy a Marimo Moss Ball?

Buy your moss ball from a reputable source. Most people will buy them from pet stores and major chain retailers but are completely unaware of the high amount of fakes that exists. Store owners don’t know as well. Or they may completely know about it but expect you not to know about it. That’s why you need to use those pointers up above to make sure you pick out a healthy ball.