I went to the LFS store today to buy another female dwarf gourami because I currently have 1 male and 1 female and the male was picking on the female. I am hoping that by adding another female this will spread out his aggression. The LFS gave me a gourami but im not sure if its a dwarf gourami or if its even female. It is currently smaller then the 2 dwarfs I have now but it looks different. It is greyish but distinctly more yellow then the other female and does not have stripes like the 2 other dwarfs. I know there are other varieties of small gouramis, could this be one of those? If so, is there a way to tell if its male or female?