D Pac (Unipac) Reptile Calcium Sand Red 12.5K Go to amazon.com Related posts Best reptile sand red for 2022 DescriptionNon toxic almost pure calcium carbonate sand in subtle colours to create attractive vivariums. Harmless and, in certain cases, beneficial if ingested. Sizes: Medium (approx. 12.5Kg) and Handy (approx. 2.5Kg)