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The 80F seems a wee bit too cold and the 30C/86F is also too cold if this is your basking/hot side....
Beardies need a cool side and a hot side. Babies and Juveniles need slightly warmer basking temps than adults. But the temps should be in these ranges...
For yours as it is a juvenile, the cool side should be between 70F to 85F and the basking area between 105F and 110F.
You should use a digital thermometer with a probe, the probe is placed on the actual basking area for accurate measurements. Or you can use a temp gun.
Analogue thermometers are inaccurate and can not be trusted.