i did introduce them slowly, on neutral ground, i let them see each other first, before any contact, i tried again and again over a period of 2 weeks ish, till i got fedup with my guinea pigs becoming injured.i was repeated told getting another one would be best, and was shouted at for saying my lone guinea pig is happy on its own.
after reading lots on the net and in different books, ive tried a few ways, ive swapped toys around, added mirrors to each other hutches for them to see another guinea pig and loads of other things.nothing works. i was right, my older guinea pig was happy alone.
as for the 2x more of everything, i meant space, buying more treats and food, if they lived together, one bottle of water would be enough, so would 1 food dish, and the same amount of wood shavings, plus it wouldnt take up more room and have another pet to look after, i wont rehome it, firstly as its my duty to look after it, and secondly theirs no where that will take it, i made the wrong decision to get another, based on the information other members gave me.i will look after this one alone as well now.i will not be trying to indroduce them again, several times it has not worked, and i will not risk either ones health again.
i read lots of different site about introducing the 2, some of the sites recemended by you lot ive already read.
it just goes to prove, taking other advice of "experts" in this forum, doesnt always work.