well my cousin's betta had finrot and they let us borrow some aquarium salt, betta fix, and stress coat and we put that in his water
i have two other bettas and we put that in their bowls too when we started doing it for the sick one but when he was normal, all three of them were in plain water
i have two other bettas and we put that in their bowls too when we started doing it for the sick one but when he was normal, all three of them were in plain water