Sorry if I got your hopes up by replying to this thread, but just wanted to share that I am in the same boat as you, except you probably have had your fish longer. I've had mine for a few months now, with one male and three females. I was hoping my male would want to be Mr. Casanova, but he seems totally disinterested in the females advances. At least, I think they're advances, they tend to dance in front of their shell whenever he comes near and turn very dark in color. This, usually, just annoys my male and he ends up nipping at the female and swimming to a different area of the tank, usually just to get hit on by another female!