Originally posted by Armageddon
I only find the need to buffer my Ph when performing Hyposalinity. Other than that a good aragonite sand bed should keep the level buffered. THe Ph of a tank will change when the lights go off so if you run a sump a good idea is to keep your sump lights off while your display is on and vice versa.
While I do agree with what you are saying, I disagree that an aragonite sand bed will keep your levels buffered. Someone correct me if I am wrong, but aragonite does nothing to buffer a tank until pH drops to below 7. This is the principle behind a calcium reactor.