Yeah rainwater - falls from the sky, lands on the roof, runs through the gutters and into a tank. Turn on a tap and filter it then use it same as you would any other water - no chemicals.
When you live on the driest continent in the world, you save any drop you can!! In the country its saved in dams and tanks, in the cities, in tanks.. All your water comes from the sky too - captured in reservoirs and lakes....
Here are our new bettas. They are both red and blue. My husband named his Wrigley (after Wrigley Field, Cubs are his favorite team and they are red and blue) I named mine Majesty because he is a crown tail.
I know they're both males and of course they're flaring at each other. The "secretly love each other" was a joke, excuse me for trying to create some humor. The one in a cup is in the cup that I bought him in because that pic was taken the day I bought him, he is now in a different tank.