Oh snow I thought you said it was an amel. Yes snows it is almost impossible to tell unless you catch them deep in blue and their eyes are cloudy. However, you will notice behavior changes when they are getting ready to shed and you will find you don't even have to look at the snake to find out they are getting ready to shed. They will normally hide for the whole week when they are in the shedding process. It is very scary time for them since they can't see.