I have a 1.5 year old male BP who has recently been trying to escape his tub at night. I have had him for just over a year now. He reaches up along the sides of the tub and starts pushing his nose against the lid. This only happens at night when the lights are out and everything is quiet. If I turn the light on and look at him he freezes and then goes back into hiding. When he was younger I never saw this kind of behaviour, he would often come out to cruise at night or bask under his CHE though.
Quick run through of the husbandry:
32 gallon tub with a UTH underneath the tub (probe sandwiched between tub bottom and UTH) and a CHE installed on top (like this)
Both heating sources controlled by Herpstat 2
1 hide on warm end, 1 on cool end
Ambient warm end - 81F
Ambient cool end - 76F
(measured by 2 separate thermometers on each end)
Warm end surface temperature - 90F (measured by infrared thermometer)
He is fed 1 small rat every ~14 days.
Why has he suddenly started trying to escape? Is there any way I can change the enclosure to make him more comfortable?