I'm interested and curious if there is any cichlid that could take on a full-grown male dovii and a full-grown male umbee? I don't expect many answers when it comes to these twos, lol. I can't really think of many answers myself. Such as a full-grown peacock bass that is larger, but they will be beaten up for sure, their aggression just doesn't compare to full-grown male dovii and umbee.