sounds like a new tank, I would rinse out the media/filters to get particulates out. and then start the cycling process if you do not have live media. tank will get cloudy at first from the bacteria bloom from the ammonia, this is normal, after a week or 2 this clears. takes 6 to 8 weeks to cycle a tank from scratch. wither you use pure ammonia or fish in, or my fav raw shrimp tails. with fish in you will need to be up on water changes, with the other methods not. just let it run, add ammonia to 2 ppm tops and add it as needed, with the shrimp tales just add and walk away. tank/filters do the rest.