Skinny leo but eating???

[makaveli]

I bought 2 leo's about a 3 weeks ago, one albino, and 1 leucistic (babies) well the albino already had a nice plump tail but the leucistic was smaller and didn't have as fat of a tail but was healthy. They were both shy at first, But now the albino comes out and takes down crix when they are fed, but the leucistic doesn't come out and eat it sticks it's head out and watches, but when I put a few meal worms infront of their hides the leucistic eats them. But right now it is skinny. I don't think it is finding the dish I put the meal worms in I am using a top to a spice bottle. I have been told they are both females. So I don't know what could be the problem?