Males and females can be housed together without any problems. Generally the problems arise when two males are housed together because the males tend to be territorial. Housing two geckos in the same enclosure does call for extra hides to be provided so if the female wishes to be away from the male she can. Also, during feeding you may wish to watch to make sure each gets to eat. Mine tend to bully one another (female dominates) and I sometimes separate to feed. I feed and raise Dubia.