many geckos, including our first leopard, die because of 'sand being safe'. They ingest it and become impacted. I've stopped my local petshop using it after our gecko from there died but they actually listened when I told them why. Then a new employee set up a display viv for a corn with sand. I spoke to the manager, and he's ditched the sand for good. I've got excellent fish, guinea pigs and an african striped grass mouse from them over the years, the fact that we have a reationship built up helps, but it's good that some petshops are willing to listen. I'm hardly their biggest spending customer, but the manager does his best and is now my official favourite shopkeeper.