I would think cories would be fine. Just as long as you stay away from catfish (ie. pictus catfish, striped rapheal, or anything like that) Tho i believe that cories are catfish (I dont know the classifications of them) but they should not have any problems with them. Ghost shrimp i would be a little worried about i'd go with the cories they are your best bet. If the fry are still with the parents then i would be cautious with putting anything in there but if they are in their own tank then they should do fine
Ive read that CAE's can get a little aggresive but never kept them before so your guess is as good as mine.