uv
3 posts
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a1k8t31524 - Posts: 939
- Joined: Sat May 26, 2007 5:10 am
they kill anything that is freefloating in your water, ie.......parasites like ich the also help control algae or green water
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ChristinaBug2890 - Posts: 299
- Joined: Fri Oct 05, 2007 5:15 pm
I'v seen them in ponds too! They make the water insanely clear...gonna try one out in the new pond this summer I think.