Low pH with Aquasoil
I recently setup a shrimp tank. Right now I only have RCS but want to get CRS too. I used aquasoil because it is supposed to lower the pH and hardness of the water. My tap is 7.6 but when I put it in the tank with the aquasoil it drops to 6.4 I tried adding buffer this moring which temporarily raised it to 7.5 but it has slowly dropped throughout the day and is now at 6.4 again.
Does anyone have experience with aquasoil or a way to keep my pH up?
Will my shrimp be ok at 6.4?