Was this an existing tank that you added the wet/dry system to?
How long has the tank been setup?
What else is in there (complete list of everything in the tank, including livestock)
What test kit are you using?
Have you taken a sample to the lfs
to have them check?
Are you sure that your tank is done cycling?
NitrAtes aren't a problem until the cycle is done,meaning that Ammonia and nitrIte are reading ZERO.
How long has the LR
been in the tank?
Are planning on a FO
tank? If so then the wet/dry with bio balls is ok. If you plan on adding any corals then you should replace the bio balls with LR
rubble and add another 75-100 pounds of LR
to the tank.