12-06-2011, 07:26 PM
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Originally Posted by wade217
I took out all the water in my 30 gallon tank about a week ago, because was merky, and it would not cycle, put fresh water in it, now is it possible that the tank has cycled already? the ph is high, the ammonia is 0.50, the nitrites are 0, and the nitrates are 0
If the tank was already cycled, removing the water and replacing it will not affect the nitrifying bacteria. How long has this tank beeen running? And with fish, or some other means of cycling? The ammonia is a concern, if fish are present; in a high pH that is very toxic.