Are we absolutely positive that female dwarf gourami's do not have the markings of the males? I have 4 dwarf gouramis and I'm trying to figure out the sex of them. They are all blue with orange stripes. Some people think the females are silver and not blue. Some thing you can tell by the fins. I have one that has squared off fins not pointed or rounded and I'm trying to decide if it's a male or female. According to the color male. According to the fins female. Can someone please help me figure this out?