Rep-Cal fine powder is an excellent source of calcium for all reptiles and amphibians * Scientifically formulated from 100-percent natural oyster shell phosphorous-free calcium carbonate with vitamin D3 to aid in absorption of calcium * Mix with vegetables, fruits and pastes approximately 1/2 tablespoon Rep-Cal with 1/2 tablespoon herptivite per-pounds of food * Shake slowly until they are completely covered; no other supplementation is required * Available in 5.5-ounce size