Sorry your dragon is not eating right now.
Can you run over your tank setup with us, such as the type & brand of UVB, supplementation schedule, as well as the temperatures, too?
What sized tank do you have him in currently?
You haven't had Jasper for very long then? He looks pretty young in the pictures.
Also, please review the foods you are offering him, too.
He lives in 15 gallon terrieum.He gets calcuim 2 times a week.I use a Zoo Med 10 watt uvb bulb and a 100 watt uva heat and basking bulb It stays about 95-100 degrees.Also Jasper turned 2 months on monday hes pretty young And he eats crickets sometimes and Dubia roaches (there baby ones)
What kinds of thermometers are you using. If its those round stick on those are very inaccurate. You need to get a temp gun or a digital with a wire probe so you know the temps on the basking spot. Also nix that coil uvb. Those cause lethargy, appetite and eye problems. He needs a reptisun 10.0 Tube uvb light.
Breardies can go a couple of weeks without. Is it nice where you live? If so you can take him outside and let him sit on your lap to get some real sun. The best uvb source.
He needs calcium with D3 5x a week and vitamins 2x a week. Also you should get him a bigger enclosure. Petco has a dollar a gallon sale. Those small tanks are really not very good as it's hard to get the correct temps and lighting set up. I'm glad you bought him the reptisun 10.0 tube. Hopefully that will help.