The last few days i've seen my male guppy trying to mate with my female molly. Has anyone else had a problem with this. It's kinda funny to watch since she is much bigger then him. But i'm wondering if he is confused since i never see him bother my female guppy but she is also pregnant. Unfortantly my other female guppy died. Do i need to get him another female so he will leave the molly alone?