move them to another tank ? or forget foreground plants, and put sand instead, sand looks very attractive too. I have cories too, and they dont really seem to disturb my plants too much to uproot them, plus it gets harder to pull out plants when they have long healthy roots. I personally, when i encounter that problem with fish and plants , think of the plants like a tree, a young tree will be easily yanked out or damaged, while a big mature tree will be hard with the size and roots extending far into the ground to anchor it down. I would say let the plants grow by seperating the cories if you have another tank, then once ur carpet is done, put them back in.