Why is my new dwarf hamster not drinking, scared, and biting?

You may need to revisit his water source in his enclosure. If you are using a bowl, he may not be used to drinking water from a bowl. Conversely, if you are using a bottle, he may not be used to drinking that way. Call the place where you got him and ask them how they were offering him water. He may not like the taste of your water if you are using it from the tap. You may need to use filtered or bottled water. In the meantime, you can use a syringe (or use a dropper) to see if you can get some water into him. Hope this helps. Best wishes.

Thanks for reaching out about F. Junior. It appears he is ill and might require a visit to the veterinarian. Intestinal parasites or infections, respiratory disease are all common in new acquisitions, and the cold weather could have prompted the condition. Offer water via a syringe but contact your local veterinarian. Good luck.

Thank you for using PetCoach. It is important to remember that hamsters are nocturnal animals. That means the majority of eating drinking and activity will be done at night. She is also stressed by the change in habitat and abnormal activity. Try to minimize handling for the next few days, especially during the day time when she should be asleep. Here are some articles that may give you some more information. If she is not active at night or eating or drinking, then I would recommend a veterinary visit tomorrow. https://vcahospitals.com/know-your-pet/owning-a-pet-hamster https://vcahospitals.com/know-your-pet/owning-a-pet-hamster https://bellevueanimalhospital.com/veterinary-services/exotic-avian/hamsters/ https://lafeber.com/vet/basic-information-for-hamsters/ https://lafeber.com/vet/wp-content/uploads/hamster-basic-info-sheet.pdf

I think you need to give him more time to calm down. One day is not enough. If he is very stressed it is best to cover the cage for a few days and bother him as minimally as possible. This will give him time to acclimate. This linked article below may help you more. https://hamsters101.com/help-hamster-adjust-new-home/

Thank you for using Petco Pet Education Center, formerly Petcoach! Hamsters are pretty aggressive naturally, as they are commonly a nocturnal prey species. They also make burrows and nests, so it may be why Eggnog is destroying his toys. You may have to move very slowly with Eggnog, offering treats through the cage and even just approaching slowly and standing near his cage to start. I hope this helps!

Thanks for reaching out about Charly. Hamsters can be very scared and cage protective. When initially handling, try to scoop up in a cup to remove from the cage, then place on a table and try to pick up. This can bypass the territoriality of cage protection. Hamsters are also nocturnal, so don't like to woken. Good luck.

It is possible that Khaleesi has hurt herself in the new enclosure. I would recommend giving her a few days to get settled to the new cage. Sometimes a change can cause stress and will make hamsters more anxious and scared. This will change their behavior. If in a few day Khaleesi does not seem more settled I would recommend taking her to a vet to make sure she does not have an injury. At anytime if she stops eating/drinking I would take her in sooner. I hope that helps