My tap water is pretty acidic and comes out of my tap at about 6.5. I bought Seachem alkaline buffer in hopes to raise it to a more suitable level for neocaridina shrimp and a betta fish. Everything I've seen says to raise the pH slowly but the only instructions on the bottle say to add 1 tsp per 20 gallons everyday until desired pH is reached. What is the best way for me to dose my tanks? I have two 10 gallons.