Thank you!!!

I responded to your email.

You’re welcome, and yes of course they can. Just remember though, the more items you add to a tank the more it displaces to the total volume of water (a marimo does absorb water). Think of it like adding ice cubes to your glass. It starts to overflow because the object is taking up space in the tank. This is important because if your tank is 3-gallons and you add plants, gravel, decor, etc. you will start to decrease the total capacity of the water volume in the tank. A couple marimos would be fine though tanks on the smaller side.

Bamboo can be tough because it needs to extend out past the water surface and sometimes depending on its health the stalk can start to decay and cloud the water. An underwater plant recommended on this page will not make your water cloudy if it’s healthy and will help to oxygenate and keep the water cleaner.

Thanks for the help, Bryan!
I am planning on setting up a Betta tank soon and this article was very useful.
BTW, is it possible to have more than one Marimo Moss Ball in the same tank and have all of them be healthy?

Yes, another great option for a betta tank. It does grow pretty fast though once it’s established.

Yes, you can place the roots/stalk of the bamboo in the tank but it often interferes with a tanks cover since it has to stick out the top. Rinse in hot tap water for a couple minutes to kill any bacteria before adding in should you decide to.