I am in the process of buying a crested gecko, but something struck me as strange when I asked about the feeding. The prior owner, who has had the gecko for a while, has been feeding it the small jelly cups mixed with water. This diet has been paired with repashy and calcium dusted crickets. I've heard, that the jelly cups are really unhealthy and even dangerous to feed to your crestie. Is this true? If so, is it a good idea for me to buy the gecko? Is it possible that it'll be addicted to the high sugar concentration or have any troubles from a past of eating that?