These worm like sticks have excellent ingredients to keep your fish healthy. There size makes them excellent for all fish. They slowly sink through the water to give fish a chance to feed. The added natural color enhancers bring out all the colors in your fish. Excellent for all tropical fish including Discus & Angels Great for bringing out the colors in your fish Similar in size to bloodworms that fish love Ingredients: Whole Anchovy Meal, Krill Meal, Soybean Meal, Wheat Flour. Fish Oil, Squid Meal, Red Algae, Spirulina, Astaxanthin, Calcium Propionate, Rice Bran, Proteinase Enzyme, Garlic, Brine Shrimp, Vitamin Pack Guaranteed Analysis: Crude Protein 45% min, Crude Fat 4% min, Crude Fiber 8% max, Crude Ash 12% max, Moisture 12% max The sizes with Jar after the weight come in a jar. The bulk box comes in one bulk bag in the box. All other sizes come in a FDA approved resealable poly nylon bags that keep you food fresh. When you buy the 1 lb. size you will receive two bags with 1/2 lb. of food in each. When you buy the 5 lb. size you will receive 10 bags with 1/2 lb. of food in each. This allows you to open them up as you need them instead of one big bag that will go stale.