Fish in cycle finished?!?

[Danno]

I've had my tank up and running for over a month. Fish have been in for about 3 weeks now. I monitored my toxin levels very carefully all month and frequently did water changes. I watched my ammonia levels rise and fall and now today when I tested my nitrite is was back to none. Nitrate levels are very faint as well. Is the cycle finally finished??

 

[librarygirl]

So you had the nitrite spike when nitrites rose as well? How long have they been at 0 without a water change? If they did rise and are now at 0 without changing water that's a good sign. I'd keep testing just to be sure but you may be cycled, it's too early to say for sure yet. If ammonia and nitrite stay at 0 without water changes for a week then I'd say you're cycled.

 

[Danno]

Yes I watched them rise as I monitored them almost daily and did frequent water changes. I did a water change then 2 days later when I tested it was magically 0. The test I just did 5 minutes ago indicated 0 ammonia and nitrites. Nitrates were less than 5. Thanks for the info ill keep a look out for the next week but I got a feeling I'm there!

 

[librarygirl]

I agree, looks like you're cycled, keep testing though just in case. Congrats