These are NOT Black Knight or Celestial Rams which are more pure black strains
The Ram is prized for its winning personality despite its fierce appearance. With its spiked dorsal fin, low-slung pectoral fins, Mikrogeophagus ramirezi appears to be an aquarium bulldog. However, this member of the Cichlidae family is actually one of the more social and peaceful freshwater fish. In fact, most Rams will actively swim with equally non-aggressive members of your community aquarium and are known to faithfully pair with just one other mate.
