Well, Sunny is a large male, hes around 65-70g and has a good bit of muscle for his species. Still though, they just have bug crusher teeth. However, he likes to shake his head back and forth like a dog when he bites so it does bleed and can be kinda painful. If I remember, I will upload a pic of him biteing Kodie later tonight. We had to use a credit card to get him off.