Hi, so I just came back from my first year of University, and found out that my tank's pH is 6.2, Ammonia 2.0ppm, Nirites 5.0ppm, and Nitrates are 0.25ppm. It's bad from my mother's overfeeding, and only gravel vaccing once every two weeks.... It's a 55g with 6 neons, 4 gouramis, 3 angels and a...