Seed shrimp, also known as Ogtracods, are worldwide in distribution and are among the most common crustaceans to be found in fresh, marine, and brackish waters. They do not so much swim as bounce along the bottom of the aquarium, close to the substrate. This habit renders them an ideal food for small, bottom dwelling fish and invertebrates. Although not often bred as a food source for aquarium animals, seed shrimp are resilient in captivity and will thrive on a diet of algae pellets, liquid invertebrate food, and finely ground tropical fish food flakes.