Bloodworms - Big, Fat, and Red! These blood worms are JUMBO size - big, fat, red and juicy - the way your fish love them! They are quickly processed 3 times though the purification stage to insure freshness and cleanliness. This food is excellent for all tropical fish, both freshwater and marine. INGREDIENTS: Bloodworms, Chironomus sp, potassium ascorbate. (source of Stabilized vitamin C).