PREIS Opti-Mix are Primary-feed and Spirulina Tabs combined, the perfect feed-mix created specifically for saltwater animals such as prawns, crabs, hermits and reef lobsters. Healthy shell growth and trouble-free skinning are guaranteed by the varied, high-quality diet. Vitamin C and additional vitamins strengthen the animal, and protect it from deficiency symptoms and illness.Recommended feeding for PREIS Opti-Mix:Subject to the size of the animals feed each animal 1 tab every 1-3 days.Contents Spirulinatabs:Spirulina Tabs with spirulina, vegetables, algae, vegetable by-products, yeast, cereals and antioxidants. Spirulina with essential amino acids, Vitamins A, B, and E and high concentrations of calcium, iron and magnesium. Analysis: Crude protein: 30 %, Crude fat: 4 %, Crude fibre: 4 %, Water: 7 %Contents Primary-feed tabsPrimary-feed tabs with artemia salina, various types of fish, crustaceans, yeast, cereals and antioxidants. Artemia salina & fish and crab produce with a particula