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Why is my crested gecko lethargic in winter? Is it brumation?

Updated On September 23rd, 2025

I recently went 2 vet with my crested gecko at petco (bc he was lethargic) They said he was fine, and was in a "mini hibernation" in winter. Is this true? If not, why is he so lethargic? If it true, how long hibernation last? I hold him about 5 min bout every other day. Temps around 77 degrees (If u look at new Caledonia weather, it round that) & keep humidity around 40 to 67%, and has TONS of decor and hiding in a 18 by 18 by 24 tank(btw, is there any way for me reply 2 u after u answer?)

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on February 4th, 2018

Low temps can result in a crestie going into partial brumation. A stool sample should be examined to rule out intestinal parasites or bacterial overgrowth. Bump ambient temps up by about 5F and see if that increases activity. Soak him in a warm 50/50 solution of water and unflavored PediaLyte. This will provide warmth and hydration. Feed prey that are smaller than what you would normally feed just to get him eating more. Gut load prey for 24 hours to maximize nutritional value.

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