i have been checking my pH for a while and its a constant 7.4. I have been wanting to lower to a 7.0 or a 7.1, but whatever i do, it still remains at 7.4. i have done many water changes. sum one told me to add salt...it doesn't work, i tried a full water change.......doesn't work, tried many different chemicals.........doesn't work. so if anybody can tell that im doing anything wrong and any way i can lower my pH, i will appreciate it. i do 20%-30% water change every Sunday. and every 5 months i do a full 100% water change. i do this to both of my 30g and 70g tanks.
