I do not think I would. They are just enough different that this is not something that they share. Some may try it but on the whole while they seem to be affected by the same types of diseases, the same types of cures do not always work. For one thing the virus that attacked the Dwarf Gourami took a while to reach the betta population and when it did the things that had helped the Gouramis did not help the Bettas at all. They are related but not in those ways. We lost a lot of bettas during that time but the Dwarf Gourami population was decimated before that. They were hard to come by for a while and are not too prevalent in some areas yet.