So I've got my Thick-Tailed gecko in an Exo Terra Terrarium that's 45x45x45 cm, I've started to think of all the upper space I'm wasting as he doesn't climb, so I'm going to purchase one of those Low Exo Terra Terrarium 45x45x30 and put him in that instead so I'm not wasting any upper space. Which got me thinking what will I put into his old enclosure, I'm so in love with Marbled Velvet geckos and have them in that instead. Is an Exo Terra Terrarium 45x45x45 an appropriate sized enclosure for one or two? As I know these guys are arboreal, is it better to heat the enclosure by a heat mat connected to a thermostat or a heat lamp? This might be a stupid question as I know these guys are nocturnal, but do they need UV or any type of lighting? & any other things I should know are more then welcome.