Hi
We have got two male dumbo rats called Thunder and Whisper a week ago, Whisper is very friendly, and is happy coming out when we are about. However Thunder is incrediably nervous, and will only come out when it is completely dark. My partner and I have put two t shirts we have worn all day into the cage, so they learn our scent. Is there any other suggestions of how we can get Thunder to become less nervous? Also we are thinking about getting two more rats to join them (two more males, because we luckily have enough time to be able to devote a hour each to them at least), do you think this is a good idea or we should just stick to the two? Thanks for reading.