The tank is 400l
I want to raise the pH from 6.5 to 7.2
My tap water is 7.2 and everytime I do a water change I put 6.5 buffer in due to a problem years ago.
Ideally I want to raise it up to tap level. Which to me means it has to be done between weekly water changes. So I figure, could I change 10% of water every day for a week and not mix the buffer in, just use normal tap water. Surely that should bring the levels up??
Thanks
James