does anyone use API pH UP, to increase their pH level? i purchased it a week ago and it doesn't seem to be working...i'm trying to raise my pH from 6.2 to 7.0...following all the directions on the bottle, 2 drops per gal every 24 hours(120drops), did 1 25percent water change on the 3rd day...but after 6 days(with checking the pH every other day), my water is still reading 6.2 acidic...i used to use a japanese brand that set the pH to neutral right of the bat (not quite sure how it worked, it was all in japanese, neighbor translated for me) but i don't have access to the product anymore.

