I bought five RCS about a month ago. At first I thought I had two males because I read the males were clear and small, but yesterda I noticed one of my "males" is saddled. My other "male" is not clear anymore, but is very small compared to the other shrimp and has white thing inside his body. I tried to take a picture, but I can't see him at the moment I will try to upload later. I used to think my shrimp didn't breed because they were still adapting, but now I think I don't have any males and thats the reason why they won't breed.