Marimo balls - The Planted Tank Forum
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post #1 of 6 (permalink) Old 11-02-2004, 04:18 PM Thread Starter
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Marimo balls

OK I am somewhat intrigued by these. I also have not found much writing on them. What is the general consensus on their addition to a planted tank? I am not keen on adding algae to my tank so my question is can anything bad come from having them in your tank?

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post #2 of 6 (permalink) Old 11-02-2004, 05:34 PM
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Good question. I recently purchased one to get my plant order about the site minimum. It's just sitting in the middle of my tank. I like the looks of it and am not expecting anything bad, but would love to hear from others more experienced with this plant.


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post #3 of 6 (permalink) Old 11-02-2004, 08:48 PM
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Well...I've got two tanks and each one has 2 of them in it. For one, they are cool looking. If you don't have the current, just reach in and rotate them a little. This will help keep a more round shape (if that's what you want) and keep the color. I also took one that was more oval and pulled it apart into two, rolled them and now have two smaller ones. Cool though. Also, you can gently flatten them and turn them into nice "rolling carpets."

There are reports that they help filtration (not being plants, but algae) and also prevent other algae from growing. I haven't had them long enough to really tell too much of a difference.
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post #4 of 6 (permalink) Old 11-02-2004, 09:26 PM
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Well they, like all other plants, will compete for nutrients against bad algae. However, they will not keep it at bay, like you may want to believe, any more than other plants. I noticed that mine are just as suseptable to hair algae growth. I moved them to a small nano tank and they are doing better now. They are cool algae colonies, but if you dont feel like turning them every 3-4 days then I would stay away from them.

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post #5 of 6 (permalink) Old 11-02-2004, 10:34 PM
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Could you get them to colonize a rock or some wood?

I think that would be the coolest.

I am not big on having a green ball sitting in the tank, but if I could get it to grow on some gnarly wood...sign me up.

got CO2?
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post #6 of 6 (permalink) Old 11-03-2004, 12:34 PM
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Originally Posted by putty
I am not big on having a green ball sitting in the tank, but if I could get it to grow on some gnarly wood...sign me up.
I'm with you. Most of the time the Marimo balls simply look out of place.
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