when i was a kid we kept a couple of guinea pigs and i think the run was about 6x4ish which i thought was large enough at the time so i should think double would be plenty enough for three. i always hate getting rid of runs etc because they seem small and then forking out for another so id just add to the one youve got as long as its still worth using.

__________________
Purge the world of animal testing - go cruelty free


For all your cruelty free products please visit www.purgetheworld.co.uk