So, what should I really do in the end? I have two completely different trains of thought going on.
I either stay the course and get the fish I planned on from the start and hope for the best with not messing around with water PH as fish here should be used to the conditions (even wild caughts as they've been in holding tanks that undoubtedly weren't conditioned) and survived.
Or I have to completely rethink the entire plan and change out most if not all the planned species as they're all South American-based that prefer soft, low PH conditions.
The one advantage I have is that the water is actually very soft from a GH standpoint (completely zero), it's just the KH that's so high (literally the opposite end at 240 ppm). So that might make a difference even with the PH at 8.0? I don't know, I'm still relatively new to all this chemistry mumbo jumbo.