I have noticed The color of one of my hatchlings tongues is not pink. It almost looks grey/black. This hatchling is one month old. Is this normal? I read on another website that feeding a lot of dandelions can cause this. I've had him for almost a week and he has probably had about 6-7 dandelions in that time. He is eating other things as well and is acting/eating normally. Has anyone heard of this, I'm worried.