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Old 09-21-2005   #26 (permalink)
kingkong
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Join Date: Mar 2005
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Lets see size wise 20 x 12 x 4.5= 1080 cubic ft x7.4 = 7992 US gallons or
div by 264 (US gal) is 30.3 tons in pond only + filter tanks
Your good for 30 lbs. of koi with a mature filter
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