The Planted Tank Forum - View Single Post - Fully cycled already?
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Old 01-22-2013, 07:33 PM   #11
l8nite
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Since you registered Nitrate and no Nitrites, your bacterial colony might be large enough to process the tiny amount of ammonia left over after your big water changes - in which case, your tank is "cycled" (meaning, you have a colony of Nitrosomonas and Nitrobacter present).

Try cutting your water change frequency to every 2 days (but test each day still) and see if it remains constant.
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