No carpet please. Use some fine gravel or sand. He also needs water, they don't live in desert areas but in quite humid areas. So put enough soil to be able to insert some nice plants and moss, and a branch he can climb up. The tank is quite plain, nothing much to do/move for him. But it's good you want to improve it, Rocky looks good. You can also take him out and let him roam around, they get really tame and snuggly.
@@kenzielovesfishing um dude you don’t wanna compare the taste of saltwater fish to freshwater. I’m just saying dude. If you ever in Southern California. I will take it to get some good Fish dude big ones too.