The Planted Tank Forum - View Single Post - is my cycle over?
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Old 10-10-2012, 06:42 PM   #25
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The bacteria will not die off so long as you keep adding ammonia, or a source for producing ammonia, like some fish. So when your ammonia & nitrites are '0' and your nitrates low after a wc, your cycle is complete and i'ts time to add your fish.
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