Tropical Fish Keeping - Aquarium fish care and resources

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-   -   moss balls (

willow 08-21-2008 04:45 PM

moss balls
i don't seem able to find a thred on this.(what's new :roll: )
what if any is the advantage of these.
any info,first hand knowlage would be great to have.
thanks. :)

fish_4_all 08-21-2008 06:02 PM

I think they are called Marimo balls but I don't know if the spelling right.
They are actually a type of algae that balls up because it grows best in the shallows of lakes with some sort of wave action.

The advantage is they are a plant so they will help produce oxygen and use up CO2 and other waste products. From what I have heard they can be a pain if you don't roll them aorund and they can flatten out. Most say they won't grow onto rocks or other stuff but I dont know how true it is.

Don't be afraid of them because they are algae though. I have never heard of them growing like the other unwanted algaes we get so often.

iamntbatman 08-21-2008 10:28 PM

I have one in one of my tanks. It's really cool. It has grown incredibly slowly over time and hasn't seemed to flatten out, but it does get moved around from time to time during gravel vacs and such so that might be helping to keep it in a ball shape. I like it.

Aside from all of the regular advantages plants bring to your tank, moss balls also sort of act as a bits-of-food collector, like a sponge filter sorta. When I had shrimp in the tank, they'd all climb all over the moss ball and eat the little bits of food that stuck to it.

willow 08-22-2008 01:47 PM

great , many thanks guys :)

okiemavis 08-22-2008 04:48 PM

Just watch out, as I've seen lots of fake moss balls. The proper ones sink. The cheapo ones are a ball of styrofoam covered in moss, which float. My LFS got some of those recently in a plant shipment and boy were they pissed!

willow 08-22-2008 06:08 PM

hmmm thanks for that.
i don't think i'll order on line then,i think i'll get them from the
LFS where i can see them.

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