ONE CON: A lot of leopard geckos do not like the taste of vitamin supplements. Mine is no exception she tests her food before she eats it. She still eats but likes it less than calcium dusted insects. This came quickly which was important to me because I had a leopard gecko fall into my care when I've never owned geckos before. She came with "everything it needs" for free but i was a little alarmed the previous owners did not give me any vitamins. Immediately I ordered calcium and other vitamin supplements and she's much healthier than she was when I got her. I'm happy with this product.