I have a juvenile leopard gecko that I have had for about 9 months now. Luckily I did enough research before hand to know that I shouldn't use sand as a substrate, and got repticarpet instead. It's super easy to clean and maintain, and I have never noticed his claws getting stuck like some people say. That being said, every once in a while his TEETH get stuck to the carpet when he dives for a cricket. He only gets stuck for a few seconds and then is able to pull himself away. I'm not super concerned since leopard geckos regrow and replace their teeth constantly every few months, so if it did damage them it wouldn't be permanent. Also it doesn't seem like it hurts him since it doesn't deter him from continuing to hunt crickets. He also gets mealworms in a dish so if he didn't want the crickets because of his teeth sticking he would have the option to not eat them. What are other people's thoughts on this? Has anyone else noticed this with their leo? Is there maybe a different brand that isn't as rough or fibrous to get caught on?