Would apistos or rams bully corydoras if they were together in a 29 gallon? I want to do a South American tank but I worry about the lack of space at the bottom. I don't really care about breeding I just don't want them to fight over territory. I know I could probably get pygmy corys who don't hang out on the bottom as much but I'd like something a little bigger.

Also, would it be bad to just get a single apisto or ram? I've seen conflicting info on group sizes, where some places say they do better in larger groups and others that they do better alone or in a MF pair

pic unrelated