Hey guys, im new to this forum and crested geckos. I got a harlequin crested gecko about a month ago and so far hes doing alright. I just upgraded his terarium to an 18x18x36 which he seems pretty happy about. I wanna introduce another into his tank but i have no idea what sex it is or how old it is. I named him Khal Drogo but he might just end up being Khaleesi. Here are some pictures let me know what you think!