How can you tell when a swordtail fish is about to give birth?
How can you tell when a swordtail fish is about to give birth? The Eyes of the Fry and Signs of Impending Birth To accommodate the developing eggs, the mother's body expands, becoming deeper and broader. A few days before delivery, she develops a bulge below the gills, her outline becoming fairly square in this region, while the gravid spot has enlarged its area. How many fry do swordtails give birth to? Swordtails can produce 50 – 100 fry every time and may give birth again four to 6 weeks after the first birth. It may take longer. How long...