Thread: Carbon, for how long?
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Old 05-22-2007, 12:56 AM   #3 (permalink)
Mr.Reefer
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Quote:
Originally Posted by Aqua-holic View Post
spent carbon will rerelease all the things it has removed back into the aquarium if it is left in too long.
humm, how can I tell is time to change it before it start polluting my tank?
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