Which UVB light are you using? Is it a flourescent tube bulb or a compact or coil light? I need the particular brand of UVB please. Are you using a bright white light for basking?
What are the temperatures in the tank, & what do you use to measure them with? A stick on thermometer, a digital probe or a temp gun?
How often do you feed him, & what foods do you feed him?
Are you supplementing calcium 5 times per week?
Ok, what brand is your flourescent tube UVB? It will say on the base of your bulb.
How large are the crickets? As a baby, he needs upwards of 50+ feeders per day to put on growth & size for his metabolism.
What are your temperatures, & what do you use to measure them with, a stick on thermometer, a digital probe or a temp gun?