Male anoles have a flap of skin under the throat called a dewlap, usually some shade of red or orange. They display these dewlaps when trying to find a mate or frighten an enemy. Brown anoles need a basking site near the light bulb, but they also need a lot of shade in the terrarium. An under tank heat pad is not necessary. Keep in a desert terrarium and provide plenty of hiding places.
Feed geckos a variety of soft, preferably soft-bodied insects.
For best health, feed crickets dry oatmeal sprinkled with calcium and vitamin powders for 3 - 4 days before offering them to lizards. This is because geckos have higher calcium requirements than day-active lizards. Start with a young tegu, no more than 12-inches overall, and handle it regularly until it is unlikely to bite. The best way to obtain a lizard is to visit a pet shop with a good variety for sale, so you may inspect your animal to be sure it is healthy. The tail should be whole, neither missing nor regrown.