I just took the ammonia test kit, and turns out it was too high. I just did a 25% water change and I'm planning on doing so for the next couple of days. Should I do something else?If the tank was not cycled before you put your fish in, he was probably suffering from a buildup of ammonia and nitrites for the better part of a month or two, which might have caused this. pH is not nearly as important to monitor as your ammonia and nitrites, and nitrAtes need to be looked at as well.