hey guys! just got some leaf fish yesterday.. tested the water and somehow ph is at 8.. i know leaf fish need about 6-6.5. i already used blackwater extract but is it safe to lower the ph from 8 to 6 all at once? is it better to go from 8 to 7.5 today then 7.5 to 7 tomorow and so on.. or do i just go from 8 to 6 now? please help.. also, any other ways i could make the water more acidic, driftwood is good right? thanks in advance