I am sure there are dozens of posts about this but I can't find any-WATER question

[Snakegirl2017]

I have searched for information on water. I have read and watched videos about needing to add a treatment to my BP's water that he has in his drinking bowl. We have well water. It obviously is NOT chlorinated, etc. Some posts say if I would drink it, it's fine for him. Advice on this topic? Our fridge does have a filter on it, but that water is super cold when it comes out and frankly most of the time we still use water from the faucet 99% of the time.