Hello y’all. I thought I was downsizing but I am aquiring a friends 20 gallon with some fish that he does not want anymore. I’m Also going to be transferring the fish I currently have in my 10 gallon to the bigger tank as well.
Depending on where you live some cities water is naturally hard or soft. Where I am we have very hard water. For soft water to become hard like you described you would have to have something in your tank making it do that.
Well right now I have down sized to a ten gallon I currently have a guppy 5 cherry barbs and a angel. In the past I have had goldfish I have gone through a few bettas. I one had some Jack Dempsey’s and a few firemouths.