Hi , new to this site and wanted everyone's opinion on the best and safest substrate for my male and female dragons . As of now ,they are on crushed walnut shells which I got from my reptile store.. I now know is bad for them . I have done playground sand, reptile sand but I just wanted your opinions on carpet ? I was under the impression that the dragons could get their claws stuck in it . Please let me know what everyone thinks about what would be the best for my dragons !