What is the meanest fish with the worst temperment you have ever kept?

  • We are currently upgrading MFK. thanks! -neo
3" female firemouth... i know it sounds rediculous but this aqua nazi has killed both of the husbands ive got her, straight up half-ate 2 fellow tank mates between marriges (lil JD and a com plec)... put her in the 55 with the solo 2.5-3" in red belly pirhana... within 3 minutes shes terrorizing the RBP... now she sits in the 20gal wide with a 2" kenyi!: the only fish she doesnt go Lecter on (who woulda thought).
 
Mine would actually be either my Red devil or my old Angelfish. My old angelfish killed two Kribensis and took over my 55 gallon when they wer eother fish in there. Now it's my red devil / midas, Paco. He pushes Fred ( 13-14" Channel catfish) around and everyone else as well.
 
My wildcaught female P. Motaguense was the most beautiful and Aggressive fish I've owned. She killed her 6 inch male at 5 inches and killed a 9 inch male umbee at 6 inches. She unexpectedly died at 9 inches. She had some gnarly teeth.
 
I had a 7.5in firemouth that beat up my JD,GT,texas and a few africans in my 135gal!!!!!!
 
assorted male parachromis while breeding. it's amazing to see jaguars and dovii come right at you no matter how big you are to defend their nests.
 
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