Pets @ Home told me they no longer stock the 120 cm cages in store and you can only get them online, so when I asked what cage is recommended if you buy 2 or more guinea pigs in store I was told that they have 2 options for a group of guinea pigs depending on my budget, either the 80 cm cage or the 100 cm cage. On further inspection the books sold at my local store had minimum cage sizes for two guinea pigs as 51cm x 51cm. I have attached pictures below. According to the guidelines i could keep upto 10 guinea pigs happily in the 120cm cage. Does anyone else's store not stock the larger cages anymore?