A large species of Daphnia commonly used in aquatic effluent toxicity testing and physiology studies. An obligate algal feeder, D. magna can be successfully cultured using powdered Spirulina as a food source. Cultures of D. magna contain adults, juveniles, and neonates. One Culture is sufficient for a class of 30 students. Order the Culture 8-Pack to cover multiple sections or labs (up to 240 students).

A large species of Daphnia commonly used in aquatic effluent toxicity testing and physiology studies. An obligate algal feeder, D. magna can be successfully cultured using powdered Spirulina as a food source. Cultures of D. magna contain adults, juveniles, and neonates. One Culture is sufficient for a class of 30 students. Order the Culture 8-Pack to cover multiple sections or labs (up to 240 students). Note: Culture contains approximately 30–40 organisms per culture container.