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Old 04-03-2012, 04:55 PM
RuGlu6 RuGlu6 is offline
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Join Date: Sep 2008
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The bottom line is if you have large tank and you do a lot of water changes go Instant Ocean, if you tank is less then 100 Gal go with the good brand like D-D .
It lasts me a year on my 65 gal water change every week 5%.
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