Hi, I am wondering if anyone has experience with Roman Gravel, seen it at P@H, was looking at pewter sand, said it contained silica(?), was wondering if this is safe in a shell dweller tank.
http
/www.petplanet.co.uk/product.asp?dept_id=1283&pf_id=52094&source=webgains&siteid=42096
Any info greatly appreciated

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Any info greatly appreciated
