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Old 01/10/2008, 05:26 PM
Randy Holmes-Farley Randy Holmes-Farley is offline
Reef Chemist
 
Join Date: Apr 2001
Location: Arlington, Massachusetts
Posts: 52,068
4 < 6

reads as "four is less than six"

10 > 6

reads as "ten is greater than six"

> 50

reads as "greater than fifty"



for alkalinity:
1 meq/L = 2.8 dKH = 50 ppm calcium carbonate equivalents
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Randy Holmes-Farley