what are daphnia
Daphnia is a highly nutritious, live food that you can easily raise to feed your tropical fish. Daphnia are also know as âwater fleasâ because of the way they jerk and move while swimming through the water. Daphnia are small, fresh water crustaceans that can be found all over the world in freshwater lakes, streams and ponds. They are an excellent source of fish food due to their high protein content. We feed lots of daphnia to our discus, especially the young fry(1/4 inch to 3 inch size).