I'll give you my second opinion! Changing the pH is very stressful for the fish, and having it seesaw constantly as you are trying to fight the pH of the water is far more stress on them than having them just adjust to the pH that is normal for your water source.
While working in a LFS, I always talked people out of messing with the pH of the water. You can kill fish by causing too abrupt a change over too short a period of time.
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