Outdated information. BBGs, regardless of species, can be kept in either freshwater or brackish.
Sometimes I wonder why we even bother giving advice on forums lol, what is right one year is not the next... :grinyes: I got mine about a year and half ago. At the time, there was so much talk about haw bad it was to keep em in freshwater. I've kept them in my light brackish tank and they are doing well.