I am thinking of shuffling some filters around because one of my tanks could use a boost and some more water circulation as well. I have extra AC110s but this tank is flush with the wall so I have to use a canister. I can pull either an XP2 or XP3 over from my african tank, but I am concerned about the change in pH. I buffer the African tank up to 8 (though lately it has been stubborn, I think some new rock may be working against it) and the other tank that needs the filter is at 7.2. Would that change kill my bacteria?