After some health problems and the death of one betta, I've concluded that adding salt to the water may be a problem in my case and I am experimenting with not adding it when I change water. In fact, I've switched to "betta bowl conditioner" and that's it. So far the results are encouraging, one VT betta perked right up in a span of 48 hours and has returned to the active little critter he was when I bought him.
I'm thinking it largely depends on the local water and what it needs or doesn't need to provide a suitable habitat. It probably takes a bit of experimenting and/or lots of testing to figure out the best mix.
Just a few thoughts.
- Ken