Apparently all pigs root, but some like Kune Kune, less than others. If you look on Preloved there's usually some free to good home, from people who didn't realise how much food even a small pig eats. I got some small pigs free a few years ago (and yes - they really were small although I daren't use the word micro!) After a while their cuteness took second place to the food bill and the sausages are still in my freezer. But at least you've kept pigs, so know what you're getting into.