Spot on! However, I'm sure someone else more experienced (GrifTheGreat) will chime in soon, but what I have already learned is the UTH needs to go on the side of the tank on the opposite end of where the water dish is. Having it under the water dish will more than likely make that water evaporate very quickly. Also, having it under the tank in general risks him/her burning themselves since they burrow in the substrate. He/she looks good though congrats.