On 20 May 2006 00:55:43 -0700, wrote:

Hi,

Water quality is fine (amonia etc.) water clarity is poor. I have 13
large koi. Can you tell me more about the pre-filter or bigger filter?

Check out my website and the filter situation I have. If that won't work
for you, explain how your set up is .... set up. ~ jan
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See my ponds and filter design:
www.jjspond.us

~Keep 'em Wet!~
Tri-Cities WA Zone 7a
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