thank you very much. I was just worried because recently he went through a sever case of dehydration due to a roommate accidentally using my freshwater container to store vodka, I spent alot of time nursing him back to health and holding his little nose out of the water. It was very stressful. I couldn't believe it happened I was VERY ANGRY. But he's doing great now. I have a very good terrarium setup. I was just worried he was suffering from an organ issue due to the dehydration. But I'm glad to here it's just a natural shade. Thank You very much Tom.