Fishless Cycling

You are on your way!
 
After 2 weeks, my nitrites have dropped to 0!! I have been dosing to 5ppm every day, and just today my nitrites disappeared! This seems too good to be true, though, doesn't it? I mean, can it possibly be finished cycling that quickly? I did use stuff from my older aquarium, but still - what do you guys think? Safe to add fish? Do I do a large water change first?
 
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