Have I finished cycling?

[GoBigGuy]

Hello All,

I'm just wondering if my tank really has cycled this quickly using Dr. Tim's One and Only.

Here is a time line of events:

Feb 4th - 90 gal Seaclear System 2 tank setup with base rock, crushed coral
Feb 6th - Added 10 lbs of live rock to the tank with 8oz of Dr. Tim's One and Only
Feb 7th - Added 2 Ocellaris Clown fish
Feb 10th - 0 ammonia, 0 nitrites, pH 8.3
Feb 12th - 0 ammonia, 0 nitrites, pH 8.3

I have been feeding the fish twice daily, flake in the morning and 1/4 cube brine shrimp at night.

Do you think it has finished cycling?

 

[Mufasa31]

I've never used Dr Tims.

I would test for nitrates. If nitrates are zero I would say your cycle is not over.

Once you are getting nitrates with zero ammonia and nitrites, your cycle may be over.

To be safe, I would wait a couple weeks and test.

 

[GoBigGuy]

Sorry, didn't put in that my nitrates are at 20

 

[JMSKI333]

Did you see any spike in ammonia or nitrites?

 

[Dalmatia]

Depends on how much ammonia your tank can convert to nitrite to "nitrate"
That's a question you ask before adding fish, but ya it's cycled

 

[ReefKeeper09]

I usually do a "Fish-less" cycle. Add Dr. Tims and "Feed The Invisible Fish" & it usually takes about a month or so to fully cycle & have enough beneficial bacteria to handle adding 1 fish. But based on your test results it seems as though the tank is cycled. Though I still recommend testing the water day or every other day to keep track. You never know!

 

[Reefing Madness]

As long as your Trates are under 40, and your Ammonia and Nitrites are 0, your safe. To get the Nitrates down even further, I'd perform a water change.