Daphnia magna is a large freshwater microcrustacean of the Daphniidae family, commonly known as a “water flea.” Native to ponds and lakes across Europe and Asia, it is a keystone organism in freshwater ecosystems — filtering algae and bacteria from the water while serving as a crucial food source for fish and amphibians.

Nutritional Benefits:
Renowned for its high protein, natural carotenoids, and balanced amino acid profile, Daphnia magna provides excellent nutrition for both juvenile and adult ornamental fish. Its slow swimming behavior makes it ideal as live prey, stimulating fish appetite and enhancing natural coloration. In dried or resting-egg form, it offers a sustainable, long-lasting feed source that can be hatched or used as enrichment feed.