I currently have a silver hatchetfish and 5 lemon tetras but was wondering if a small ram would be an okay tank mate? I also plan on adding 1 bleeding heart tetra, a cory cat, 2 small plecos a blue phantom and a L191 and possibly a few black tetras(the lfs gets them in and calls them black tetras but I don't really know wat they actually are) but want to know if rams require other rams and wat some requirements are also do these fish get along with angels or other types of cichlids?