If you set the tank up just 2 months ago, and didn't use substrate or a filter from an already cycled tank, it should now just be cycled. It takes up to 2 months to properly cycle a tank. During cycling get a few, small, cheap, fish that will probably die. Once you go thru the sequence of ammonia, nitrate, then nitrate, you can start adding fish you expect to keep. This info is contained in most aquarium books.