Bio-wheel and cycling refurbed tank

Fresh04

Go M's!!!!!
Jan 12, 2004
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Bridgeport, CT
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I just about emptied my aquarium to start it with live plants. I was wondering what my cycling time should be. I have an activated bio-wheel that I kept fresh from the pre-work. I took about 2/3 of the substrate out to be replaced with flourite, which I just mixed with what gravel was left after removal. With the exception of about 2-3 gallons (out of a 36 gallon tank), it has all been replaced.

I tested today, ammonia and nitrites were non-detectable.

How long should it be before I can start adding my fish back?
 
yup!

you didn't say how you were keeping the bio wheel fresh.

but if you didn't loose any bacteria on the wheels during the change over. the population could be dropping because now there running on a fishless tank, which means lack off food (ammonia/etc.) compared to what the bacteria were getting.

So yes, put the fish in.

sry for not making that clear:(
 
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