Pyramid_Party;2861543; said:55 is too small for an RD. Average size for a male RD is 12+ inches.
A JD or GT is more suitable. Who cares what one is more mean, whats it got to be mean to?
A JD and GT have attitude too and are capable of killing a RD.
he specifically asked for a mean fish lol and oscars also grow 12 plus and there minimum tank size is 55 gallons, 1 red devil alone in a 55 gallon long will do fine. and they very rarly grow over 12 inches most stop at 10-11 inches