Temps are actually good - basking spot itself needs to be 39~42C with the surrounding area mid to high 30's and a cool end mid 20's. Daily bathing is really not recommended and if he's blowing bubbles from a nostril he may well have a respiratory infection which would explain the erratic appetite. I would suggest that if he's still not eating well and showing signs of a (possible) breathing problem a visit to a specialist vet is in order.
Rick
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Beardies from an Australian point of view.
