There may be several evolutionary reasons why female guppies prefer flashy males. On the most basic level, the male with the biggest, brightest tail spot announces most loudly, "Hey, I'm over here ...

Unfortunately, buying just any fish without doing your ... All Aquariums recommends a mix of 1 male guppy to 2-3 female guppies to discourage territorial behavior. That said, be aware that guppies ...