Things You'll Need
- Main tank or pond
- Tightly woven fish net or tank net
- Breeding tank
- Water filter
- Thermometer
- Tank heater
- Fish food (prefers bloodworm and live foods, but will eat powdered flakes)
Instructions
Fill your main tank or pond with both male and female mosquito fish. They should begin to breed soon, as mosquito fish breed all year long.
Observe the adult fish in your main tank or pond. When females display their gravid spot, a dark patch on the underside of the fish near the tail, they are pregnant. These fish breed all year long and many times per year, so check often.
Prepare the breeding tank. Attach the water filter and plug it in. Install the thermometer and adjust the tank heater to keep the water between 60 and 90 degrees Fahrenheit.
Isolate the pregnant females in the breeding tank.
Feed and care for the females as usual and wait until the females give birth. As one gives birth, return the female to the main tank or pond. The females will feed on the young, so isolate them rapidly.
Continue to care for the fish in the breeding tanks as you would adult fish. Mosquito fish grow to maturity in about six to eight weeks. You may lose later birthed fish to the younger birthed fish unless you use additional tanks to isolate each pregnant female.
Return your guppies to the main pond.