| Re: Im done with cardinals!
Cardinals are an amazon basin species, requiring softer more acidic water and slightly higher temperatures. I kept mine around a pH of 6.0.
In my experience they are fairly sensitive to water chemistry changes. Make sure you are getting them from a good fish store also that is keeping them in the proper tank conditions as well. If they are keeping them in hard water as well, they will probably have a shortened life even if you introduce them back into softer acidic water. |