How do I determine the age of my Leo?

[Lauren O'Dell]

My Leo is about 5 inches long, just a little guy. I know when he/she was born it was 3.5 inches long. So just out of curiosity, how old is my 5 inch gecko?

 

[Caleb C]

You can't really tell the age of anything by looking at it, that's why it's always best to buy from a reputable breeder, they keep records, or will at least be able to estimate.