I am planning to get Bolivian's as well and my Ph is 8.0 I'm planning to buy them locally if possible so they will already be used to local water, but if I have to order them, I'm planning to do a prolonged acclimation in my quarantine tank, hopefully getting them used to my ph. Changing the ph seems like a headache and a waste of time since it can be unstable which is worse then a stable high one.