Why is my cornsnake suddenly inactive and always hiding now?

Check the temperature in their enclosures. Low temps can affect appetite and activity in reptiles. If you keep them in the same enclosure, consider housing them separately to avoid stress or aggression. Survey the area in and around the enclosures for any negative stimuli. This may include loud noises, strong vibrations, bright lights, cold drafts or high traffic. Reduce or eliminate any if found. Letting them out on the lawn or in the garden is not recommended as they could escape, get injured or pick up parasites.

Thanks for reaching out about the snakes. Breeding season can be an explanation for not eating, but these animals remain very active and alert. If lethargic, weak or quiet, a veterinary visit is recommended to assess and provide a diagnostic/treatment plan. Being together, intestinal parasites would be a plausible explanation also. Good luck.

Once he acclimates to his new home, he may become more active. Ball pythons are mostly nocturnal also, so if the room is bright he may seek dark spots and come out at dusk or overnight. Keep a large bowl of water in the tank. A deep layer of porous substrate may hold moisture longer. You can even add some moss. Use a hygrometer to monitor humidity. If it's too high, you can predispose your python to respiratory infection.

I honestly would not be overly concerned at this point. Snakes can go for very long periods of time (months) without eating at all. At least he is still eating something. He may be getting ready to shed or possibly the tank temperature has fallen too low. I suggest you check the temperature of the tank to make sure it is staying at the correct levels. There should be a temperature gradient of 70-85 degrees so that one side of the cage is warmer than the other. That way he can move around to the temperature he needs at any given time. When they are digesting their food they often need higher temps. After making sure the temperatures are correct, I recommend skipping one week of feed all together. Then the next week, try feeding him again to see if his appetite is back to normal.

Thanks for reaching out about Ivory and including a photo. You are correct that snakes can be finicky eaters during weather changes. If you feed mice, try offering rat pups: to snakes they smell and taste differently. If that doesn't work, a veterinary visit is recommended as intestinal parasites or infections are common. Good luck.

Corn snakes can grow to as long as 5 feet. On average, they grow to 3-4 feet. A 10 gallon tank is too small. At minimum, a 20 gallon enclosure is recommended. A temp range of 75F-85F is best. They do not "need" a UVB light source but seem to be healthier with one. At 2 years of age, it should be eating adult mice. If it can't, feed whatever you can to get it back into a positive plane of nutrition so it can grow properly. Consider an exam with your veterinarian or an experienced herp vet to diagnose and treat any pre exiting conditions. Submit a stool sample to diagnose intestinal parasites. More information regarding care can be found here: http://www.anapsid.org/corn.html

The changes to his enclosure may have caused stress. Low temps can affect digestion in reptiles. If temps were down, this could affect defecation. Try soaking him in a warm 50/50 solution of water and unflavored PediaLyte for 20-30 minutes. This will provide warmth and hydration. To stimulate defecation, gently massage the belly from front to back during the soak. If the behavior persists, consider an exam with your veterinarian or vet experienced in treating reptiles.