Hello. Ok this is a little long but here it goes. I'm new here and I will like to know your opinion. I bought my son two male guinea pigs ( chewy & Chubby) One i bought in April and the other in May. Chewy was 7 weeks old when I got him in April and chubby was about 6 weeks old but Chewy is older by 3 weeks or so. They got along well., I never had a problem with them bonding. It's been 6-7 months since I had them but lately I've noticed Chubby the younger guinea started bullying Chewy. I noticed because one day I saw Chewy in a corner and Chubby was right in front of him, as if he was blocking him. Then I noticed every time Chubby got close to Chewy it was to corner him and Chewy runs away from Chubby and their's times that they do get confrontational. Last week I put them in their playpen because I wanted to see their behavior in a bigger space. I thought to myself... maybe I can get them a bigger cage. But no! Chubby did not leave chewy alone. There was 2 bowls with beggies in there and I noticed how chubby did not let chewy eat. Every time chewy was eating from one bowl chubby would go and stare him down or try to fight him him until chewy would walk away to the other bowl and again there went chubby to shoo him away. I now have them in separate cages because I don't want them fighting. I really don't want to surrender neither one of them. I fell in love with them even though chubby is my little bully. Any thoughts or recommendations? I will really appreciated! Thank you.