Silas turned 23 months old yesterday. Today, he is 23 months and one day old. That makes him the third oldest rat I had so far. Dobby (2 years, 4 months) and Remus (3 years +) are the only 2 rats who lived older than Silas. Sirius (the first one) was number 3 as he died on the day he turned 23 months old.
Silas is very thin but he is still able to walk around and to climb in his hammock. He is alone most of the time. I make sure he spends a lot of time in his old cage with the other boys. Being alone is better for him as I can monitor what he eats and I have to make sure that he doesn't get stressed out. Silas doesn't seem to eat his regular food. He eats his pablum, baby food vegetables and Ensure milk.