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Is my lizard stressed? Dark spots and climbing glass after tank move.

Updated On September 23rd, 2025

We just tranferred Joey from a 40 Gallon Tank to a new 90+ Gallon Terrain... He seemed to be pretty happy till today. We noticed right before we changed tanks that he had some dark coloration on his left side and tip of his tail.. He was shedding at the time so we figured it was part of it.. It has yet to go away, and today he seems VERY active, mostly attempting to climb the glass of the tank. I have attached a photo, Thank You in advance! ~Robert~

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1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on July 1st, 2018

Look closely for any retained shed along that section of the tail. Next, check the temps in the cage. Low temps could be responsible. Survey the area for any negative stimuli. He could be stressed at the recent move, in which case his tail should gradually return to normal as he acclimates. If he will allow, gently press on his tail in that section to elicit a response. If he can feel it, he will move away. If not, there will be no response no matter how hard you press. If everything checks out normal, have him physically examined by your veterinarian or a vet experienced in treating reptiles to diagnose injury or infection.

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