A month ago I started cycling my tank, after a week the water prams were fine according to my LFS so I added my fish which I ended up overcrowding. So today I got my API test kit and here are the results
Ammonia - 0ppm
Nitrites - 0.25ppm
Nitrates - 0ppm
High Range PH - 7.4
so I guess 50% water changes do pay off. Just for the record, my last change was Sunday when I changed my substrate :)