You should not keep more then 2 rams in such a small space. Only one male ram.
Rams will get territorial with eachother but not the other fish and if you have a pair, (thats different then a male and female) they will pair for life. If you get a male and 2 females, it is likely the male will pick one to pair with and then they will harrass the other female.
agreed 2 max in a 29, 1 male 1 female