What type of terrestrial lizard?
As for the top – most baby lizards will fit through a 1/2 hole. But, with a 24″ jump to get to it (unless you provide limbs, etc.) it’s not likely to escape. By the time it ougrows the holes, it might be able to jump to the top…? All lizards get along as babies, but that can change quickly when one becomes larger than the other, or they reach breeding maturity. If you house two together, always be prepared to have to separate them and have an additional habitat available. I rehab so many with a missing limb or eye, which lived in perfect harmony for 3-5 yr. then one suddenly turned on the other. If you are not intending to breed (and you would need more space to house two if you were, though it’s recommend to have at least 2 females per male), then get a single animal and have a quality and healthy/safe pet. Whether you breed, or just keep a single pet – you’ll have to research. Breeding/hatching Beardie Eggs: