I think you can make it safe from the cholorine, etc., just by adding a water conditioner. I've been using (up until a few days ago, below...) Tetra's AquaSafe. It removes chlorine, heavy metals, etc.
One thing when you start a tank, you should cycle it. You can read up on that... it's basically what you do to allow good bacteria to establish itself, and that will nutralize the amonia the fish produce (which can kill fish if in an uncycled tank)... the good news is if you get it as "bad" as I got the bug, you can instantly cycle new tanks using filter media from an established tank
We have well water here, too, and I don't think I ever needed to use the conditioner, but I was "just because". I didn't use it though in our betta tanks and recently stopped using it in our tanks that have bettas, platies and corys. Today, I did partial water changes (huge ones) and didn't use it in any tank. So far, so good. I'm trying to get ride of the residual "AquaSafe" in the tanks as I want to start using a new chemical filter media ("Purigen") and it is not safe to use that with many water conditioners, including AquaSafe.
I love the tanks. Love Love Love them. If I could change anything, I'd have started with much bigger tanks. I didn't realize 1. How much I'd enjoy keeping the fish, and 2. How many different (non compatible) types of fish I would want to keep. Over the next couple-few months, we're doing weekend projects to consolidate smaller tanks into bigger ones. I think when it's all done, we will have 1 150g fancy goldfish tank, 1 75g mbuna cichlid tank, 1 55g parrot fish tank (with tropicals), 1 55g with a flowerhorn, 1 38g angelfish and tropicals, 1 29g small tropicals, and then some 10g divided tanks for the bettas. Phew... I'm tired just thinking about all the changes! But I love it...