in addition to what has been mentioned:
- the floor of the cage is covered to make it soft,
- a litter box that is easy to enter is used,
- hammocks are hung very low so they are easy to get in and out of,
- I put cotton baby receiving blankets into the house and hammocks - changed twice a day re urine and thrown out if have holes or loose threads so rat will not get caught or injured
- use shallow food dishes,
- use a water dish that can not be upset in addition to water bottle,
- make sure food and water is easily accessible,
- provide a box/house that can be chewed
When they start having difficulty walking they can get feet caught in the ladder so if using it, make sure it is covered
- in addition to regular food start offering in a shallow dish a couple of times a day, rat blocks ground up and then soaked in cool water to make mush, as well as organic soy infant formula thickened with baby cereal - easier to eat and provide nutrition and help to keep rattie hydrated
and offer soft, easier to eat foods like cooked vegs, cooked grains, mixed greens
- check boys regularly for penis plugs and as they become unable to groom themselves well, you will need to help