I have heard horror stories about the stuff! They sell it saying it is healthy and fully digestable, and many people have had their lizards ingest it(eat it) and get impactions, or die!
Like I was telling another forum buddy the other day just mention it on the bearded dragon forum and they will have your head! LOL
You are better off using washed play sand than that calci sand. Especially with young lizards!
Here is a few words on calci-sand from Mellisa Kaplins site (herpetologist)
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Examples of Problematic Substrates
Calci-Sand
T-Rex touts their Calci-Sand as a calcium supplement. Unfortunately, this is harmful for most reptiles, such as green iguanas, as if they do ingest it, it will cause impactions, just like all other particulate substrates. Desert animals who live on sand don't ingest enough of it to make it worth the expense, not when plain, cleaned playground sand can be purchased for about $5 per 50 pound bag. Bottom line: The way to prevent metabolic bone disease is not by dumping a bag of an overpriced, potentially harmful, substrate into their enclosure, but to provide a proper calcium supplement for those species who need it; feed a properly constructed and supplemented diet to herbivores and omnivores; feed healthy prey to carnivores, omnivores, and insectivores; and provide UVB-producing fluorescents or direct unfiltered sunlight to those species dependent on UVB for the formation of pre-vitamin D for adequate calcium metabolism.
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