What I'm thinking of doing is planting my tank, waiting until the tank is cycled, cover the filter intake with cheesecloth (secured with a rubber band) buying a female (I already have a nice young male) or borrowing one from a friend if he has one, breeding them, removing the female, and see what happens if I leave the male with them fry, and not feed them and see if they can live off the natural organic and biololgical matter in an established, planted tank.