Im new to monster fish keepers and all but i would say a female jack dempsey or a red devil. I had a female Jd that would beat the **** out of anyone. she used a 8 inch trinidad pleco as a toy she tried t breed with a smaller jd male and he was to afriad of her. Ha Ha Ha red devils are just plain mean too though
RD. Mine kills everything I try to put in its tank. He doesnt care to eat it, just wants to kill it and keep his tank as his tank. He doesnt give any fish big or small a 5 second break to think. Just plain terrorizes anything I try to keep in his tank
my orange pikes killed a jag and i think my flower horn is really mean he killed my two albino oscars so my vote would go for orange pikes flower horn and prolly umbee