Leopard gecko and iguana?

Hey how does my set up sound. I have a 10 gallon long aquarium with a baby leopard gecko and a 1 foot, head to tail iguana. They live in the ten gllon tank together and are really freindly. I use an infrared heat lamp and leave it on for 6 hours. I mist the tank to make sure they drink water and i use tree bark for the substrate. I feed both of them waxworms 10 a day. However, my leopard gecko stopped eating and i think he is just shy. Please give me any other advice on how to make the tank look more nice.