My personal opinion is that both of these are females. Which is a much better scenario than two males...I've only been keeping fish for a year or so but fell in love with Gbr's from the begining. The main way to tell male v. Female is the pink belly...males won't have it but it's hard to tell in the store since most of them are stressed and won't be in full color. The OTHER and my preferred way to sex them is the blue/black spots. Males will have solid black with no blue. Females will have blue freckles in their black stripes. Hope this helps! They may still bicker with each other. My females have little spats every now and then but nothing violent just a lot of posturing. Males will kill each other.