jollysue
Fish Connoisseur
As far as I know Prime has nothing to do with cycling the tank. It conditions the tank neutralizing chlorine,adding some minerals, etc., and will neutralize some ammonia. But it does nothing about nitrIte. Do get a test kit.

I have used it sometimes too. Do you ever worry that it will decrease the ammonia enough to starve the bacteria? I have heard some say they limit the use of ammonia removers for that reason.
All work and no play makes Jack a dull dull boy