Okay, so you got a reading. If it’s between 6.5 and 7.5, you’re golden—your water is basically a neutral, friendly ghost. If it’s lower (acidic), you can add a tiny pinch of baking soda to raise it, but go slow! For plants, you can buy pH “up” or “down” solutions from any garden store.
For your fish tank, you never want to change pH fast—that’s how you stress out your finned friends. Instead, make small adjustments over a few days. And for drinking water? Honestly, unless it’s extreme, your body has its own pH balancing system, so don’t stress too much.