4 1/2 month old not eating

[TheMailSquirrel]

he usually eats 20 adult crickets a day now he's only eaten ~10 in the past three days. Im using a temp gun, basking is 114 cool is 75, he has a reptisun uvb 10.0 fluorescent bulb.
The last full neal consisted of 10 adult crickets.
What could cause this?

 

[CooperDragon]

Their appetites tend to fluctuate quite a bit so I'd just keep offering and let him take what he wants. Do you see signs of a shed coming on? That can sometimes decrease their appetite. Is he active and alert? If so, then he's probably OK.