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Daphnia Pulex

$10.00 / Sold Out


Live Daphnia Pulex Culture for Sale

Daphnia pulex is a small freshwater crustacean that is suitable for feeding various types of fish and juvenile fish. Mature specimen of Daphnia pulex measure approximately 1.5 mm in length. Thus, they are larger than Moina but smaller than Daphnia magna. Being the most widely spread species of the order Cladocera, they provide a staple food source for many fish in their natural environment. Daphnia pulex are found throughout small ponds and various bodies of waters in the Americas, Europe and Australia. Their high nutritional value and ease of cultivation makes them a great candidate as a source of live food for fish and various aquatic organisms.

Nutritional Value
  • Protein: 66%
  • Fat: 9.0%
  • Fiber: 5.0%
  • Crude Ash: 0.1%

Culturing Daphnia Pulex
In order to culture Daphnia pulex, it is important to provide a source of light, food, and aeration. The light source for the culture can be either a natural source of light or a artificial lighting. High intensity lighting is desirable as it can allow cultivation of more phytoplankton, which can serve as a source of food. Besides phytoplankton, Daphnia pulex feed on various types of bacteria and yeast. While dissolved bakers yeast can serve as a sole source of food for a limited period of time, the low nutritional value can lead to unstable culture and a lower nutritional value of the specimen itself. For optimum nutritional value, green water should be implemented. Aeration of the culture can be achieved through a simple setup consisting of an air pump and an air stone. A culture consisting of a wide water surface can eliminate the need of aeration, while less specimen density will be supported. Since Daphnia are highly sensitive to chlorine, water used in the culture must be chemically dechlorinated or aged properly. Optimum parameters for Daphnia pulex culture lies between a pH of 7-8 and a temperature of 65-75 degrees Fahrenheit.