Join Date: Dec 2012
Location: Sudbury, Ontario
I know this is an old thread, but I wanted to give some clarification regarding calcium in the sand. ZooMed makes 2 kinds of sand. Reptisand which comes in White, Black and Red, and Vitasand wich comes in an assortment of colours.
Reptisand is pure natural quartz sand. There are no colours or vitamins (calcium) added. It is inert, if a bit dusty. It is the Vitasand that has all the calcium in it. It also has dyes added.
There are a few other substrates made by zoomed for reptiles, but only the reptisand is aquarium safe.