Published by Addie Mauldin.

Marimo moss balls, or just “moss balls” for short, are small algae colonies that grow underwater. Using them as decorations is a great cruelty-free way to make a relaxing, beachy space. By contrast, purchasing betta fish for that same reason has deadly consequences.

Betta fish are suffering by the millions. Most of the time, you’ll see solitary bettas inside minuscule containers at large pet stores, but what you don’t see is how they got there. Because of misconceptions about these complex, colorful fish, they often don’t receive proper care after being purchased.

We’ll show you how to keep your workspace or home humane and betta fish–free by creating an adorable marimo moss ball terrarium.

Where to Purchase the Perfect Moss Ball:

Avoid big-box pet stores that sell animals (we’re trying to keep our homes humane, after all) and #ShopSmall by purchasing your moss ball from Etsy or a plant shop, if possible. Here are some stores that will deliver a moss ball right to your door:

Finding a Cute Container:

There are so many cute ways to display your marimo moss ball. Head to your local thrift shop and search the shelves for decorative glass containers or Mason jars. Here’s some inspiration to get you started:

Fill your fish bowl with this cute aquatic plant, not betta fish.


Fill your terrarium with sand, crystals, and pebbles.

Image of marimo moss ball

Marimo Moss Ball Care:

Caring for your moss ball requires minimal effort. Moss balls like low to medium light and fresh distilled water (only the best for your plant baby) every three months. They can live over 100 years and grow only about 5 millimeters a year.

You showing everyone your new marimo moss ball:

We hope this guide has inspired you to keep your home humane, beautiful, and betta fish–free! Want to do more? Click the button below.

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