I had 2 white rats with red eyes(from PETCO) and a guinea pig i bought at a garage sale. the guinea pig was very huge and did not like attention all he did was go to sleep or not even move at all. he wasnt sick since he ate like everyday and finished his huge water bottle in like 4-5 days. Anyways when i was changing my rats litter near him he showed interest in the rats they were sniffing eachother through the cages and simon was making such happy noises running about his cage and what not. I decided to let them have play time together outside of their cages. Simon immediately walked towards the 2 rats sniffing them and making noises the rats would lick him and play with his fur simon did not seem to mind it at all. Long story short my 2 white rats and my Guinea pig lived together in the same cage for about 1 year and 4 months before old simon finally passed. There was never a situation where simon acted violent towards the rats did not hear my 2 girls squeak once during their stay together I was really surprised simon was very sad and depressed before i got him But with the rats he moved around alot sniffing them and licking them. On the colder days they all slept together in a big furball in a corner sometimes. Long story short Its amazing how some animals can socialize even during feeding time they would sometimes eat out of the same bowl without any trouble at all. My rats would store some food in a corner and fat old simon would just eat it lol so funny. I'd liked to beleive simon lived his last years happy with his friends he certainly seemed to enjoy himself. And the rats seemed to enjoy having something big to sleep on at night. Ofcourse simon always got more veggies than the rats and they had 3 water bottles to chose from and 2 food bowls 1 with rats food and 1 with pellets and hay but of-course they would sometimes sneak to the other food bowls to eat from there too.
I know these animals are not meant to live together but in this situation it worked out Super good simon went from lazy and scared to happy and active in like 2 days i saw a complete difference in him when he had cage mates. I did not buy another guinea pig because I only bought simon because he was out in the sun and his litter was so brown and smelled really bad i felt like i had to take him home from that garage sale.I never expected him to bond so well with my rats I was very surprised still to this day no aggressiveness at all.
I know these animals are not meant to live together but in this situation it worked out Super good simon went from lazy and scared to happy and active in like 2 days i saw a complete difference in him when he had cage mates. I did not buy another guinea pig because I only bought simon because he was out in the sun and his litter was so brown and smelled really bad i felt like i had to take him home from that garage sale.I never expected him to bond so well with my rats I was very surprised still to this day no aggressiveness at all.