[header] How to separate a guinea pig for feeding [title] Ensure that bullying is the cause of weight loss. [step] If your guinea pig is losing weight, it's imperative that they see a. Unless you've actually seen other guinea pigs blocking them from food and you're certain this is the only cause of loss, get them checked by a vet to ensure there are no other problems. 
[substeps] If the pecking order has changed, and there is another bottom pig, the previous lightest cavy may begin gaining weight while the new bottom pig loses. [title] Set up the cage to optimise feeding opportunities.