Keep water temperature between 75-80F degrees

  1. Keep fairy shrimp / moina eggs warm. Put under sunlight for 3-4 hours, or about two hours under light bulbs. Afterward, put the eggs into bottled spring water or fresh water from your tank. Use dechlorinated water only, and soak for 8-24 hours to absorb enough water.
  2. After 8-24 hours, oxygenate water using an air stone connected to an air pump (Open to low oxygen)
  3. It will take 1-2 days before the eggs begin to hatch for fairy shrimp and about 3-10 days for moina. After that, start feeding food two times a day, and you may feed dry yeast and/or spirulina one teaspoon at a time. Do not add more food to the water if you notice the water looks cloudy and is still uneaten.
  4. Keep the water level steady by adding more spring water as the tank evaporates. After six to eight weeks, the fairy shrimp / moina will die off.



Keeping eggs that have not hatched


  1. After nine days, you can collect the eggs they have produced by suctioning the sediments off the bottom of the container (Eggs will look like tiny grains of brown sand)
  2. Unhatched eggs must be soaked in a freshwater container for two weeks.
  3. After the two weeks, use the included filter to separate the eggs from the water. Then leave them in sunlight or air the eggs dry.
  4. Keep eggs in a zip lock bag and store them in a cool dry place. Eggs can be stored for one year (but the longer you keep them, the hatching rate decreases).





  1. If you run out of food, you can use established aquarium freshwater, about 5-10 teaspoons, to feed the fairy shrimp / moina.
  2. The first hatch of fairy shrimp / moina is tiny, and they may not be visible.
  3. If the eggs do not hatch or the hatching percentage is less, you must dry them and use the method “Keeping eggs that have not hatched” again (Please refer to above)