In the process of switching from O to IO I didn't realize my Cal and Alk test kits were bad. Ive been adding baking soda and kent super dKH buffer to raise the Alk because I couldn't get it read above 3.0meg and I couldn't get my pH to stabilize above 7.9. Now after replacing both kits the actual readings are Alk-5.49meg, pH-8.0, Cal is 190. I'm currently adding Cal to the tank, but how should I go about reducing the Alk. This is in my 260.