Leopard Gecko; blue stomach

Question
I just got 2 baby leopard geckos about 3 weeks ago. Just today, I noticed that the smaller gecko has a blue spot on his stomach, it's almsot like a bruise. I'm wondering if it's something serious, or something that will just go away. I'm really worried because my friend had the same thing happen to her gecko and he died a short while after.

Answer
 The best thing to do is take him to a good reptile veterinarian and make sure there is nothing abnormal going on.  Reptiles do bruise and usually it's nothing, however, if it looks the same as the lost baby, a vet check will be the only thing you can do at this time.