Cycling a new tank, checking nitrates.

I am setting up a new tank and was wondering how often I should check the nitrates.

Well, since the aquarium just started cycling, it's actually Ammonia that will spike first. Then Nitrites, and last Nitrates. I would monitor them all to make sure that the cycle actually starts and then to make sure that it is over. Better safe than sorry.

Once the aquarium is done cycling, I'd only test for nitrates (and ammonia and nitrites) on an as-needed basis. I don't test for those three parameters unless I see something that doesn't look well in my tank...

Alright tank you for the information! As soon as my sand settles I will get on those tests!

Sounds good! I'd throw a raw shrimp or fish food, etc. in the aquarium to kick the cycle off for sure.