At least for me, Germans are trickier to keep healthy. My water tends to be on the slightly hard, alkaline side, higher than yours, so I prefer to stick to Bolivians, which tend to be hardier, but that might be a situation here in the States that you don't have there.
However, with a pH of 7 you should be in good shape. I would definitely avoid messing with your pH in an effort to try to lower it for them, because it is hard to keep it stable when you do that and the fluctuations are much harder on them than adapting to your water. If your
LFS water is similar to yours then they should do just fine. Enjoy them, they are one of my favorites.
