I have not had Bettas in about three years, and I'm really a newbie.... I rescued two bettas from someone, and they used distilled water. I went ahead and bought distilled water to set them up at my house, but now I'm reading that tap water with conditioner is the best. So how do I change them over to conditioned tap water? I'm thinking it would be a bad idea to do a 100% change to tap water all the sudden.
The two bettas each have their own 2.5 gallon tank - should I just add conditioned tap water 25% at a time? At what intervals? I'd like to get them changed over as soon as I can, but safely, of course.
Thanks for the advice. :)