Hey guys!! New here hoping to get some great information from some smart people, I have a 50 gallon tank that is basically centered around my black ghost knife, it is still young measuring about 2-3 inch's, I am really looking for some cichlids that will do well with him, I have a inca stone fish and several small thomasi cichlids in there currently but want some others to help fill the tank. Feel free to send me suggestions thanks