I commend you on your patience. The tank is also looking good. I am just as bad to change something and then go "I should have not done that", I just do not have the patience you do. I would have changed 15 things after that, got mad, and then gave up, and it would have corrected itself when i gave up and left it alone.
Thank you very much! I tried this "omg, need to change 15 things ASAP" approach few times also, didn't work for me too