Vetark Calci-Dust is a pure, natural calcium supplement for reptiles. It provides a high calcium profile to easily supplement your pet's food, helping them develop and maintain a healthy body for a happy life. Calci-Dust is a pure, natural calcium provider compound feed for reptiles, promoting healthy bone growth. For animals to utilize calcium, vitamin D3 must be available. In diurnal reptiles that bask, vitamin D3 can be synthesized in the skin via UVB from high-quality bulbs or included in a full-spectrum multivitamin product like Nutrobal or Arkvits. Basking species with UVB exposure may require less frequent vitamin supplementation (alternate feeds recommended). If using Nutrobal, consider using Calci-Dust and Nutrobal on alternate days, especially for growing tortoises, to minimize the risk of shell deformities. Calci-Dust has been ground superfine for maximum digestion and to adhere to all food types like fruit and vegetables. Vetark Calci-Dust offers 400mg of calcium per gram. This superfine powder is ideal for dusting on any food items, such as vegetation, fruit, or live food. It is ideally used in conjunction with Vetark Nutrobal for a complete supplemental regime. Use approximately 1 pinch (1/8th of a teaspoon) per kilo of animal requiring supplementation.