Bloodworms are the larvae of a non-biting Midge. They are named after their coloration, which can range from pinkish-red to dark red.
The hemoglobin found in the larvae’s blood, which is a type of red iron-porphyrin protein, gives it its characteristic color. Blood-worms are rich in iron and calcium (chitin).OF® Insta Fresh Superior Bloodworm comes fortified with calcium, minerals and vitamins to give your fish better growth and vitality. It is widely accepted by most fishes making it ideal for picky eaters.