Vetafarm Ectotherm Multical Dust 150g. Multical Dust is a veterinary formulated, all in one Calcium, Vitamin and Mineral supplement for addition to live insects, fruit and vegetables. Indications: To supplement the diet of any reptile or amphibian with essential nutrients, calcium, vitamins and minerals. May be used in all species of reptile and incorporated with any food type. Recommended for: All reptiles in need of calcium, vitamin and mineral support.