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

  • We are currently upgrading MFK. thanks! -neo
johani... he was 1 1/2 inch and was goin after everything in my well established african tank peacocks haps and mbunas all were running from him... the next day he packed his bags and left
 
my f gt
 
Its a toss up for me... I've had several fish hold the jaugernaut hat. Had a 6"male escondido run my 180 with 6" male umbee, 6" male dovii, 2-5.5" female true red devlis "which he was dating at the time."
then i did some moving around and threw a 4.5-6" grammode pair in and they would have shredded the entire tank within minutes.
I also had a 6" Male Odo that killed 5 or 6 females, pleco, couple pairs of cons, beat on festae's and beani's.
 
dovii male 12" killed three females, and anything else that was ever in the tank with it. Ate the face off of a silver dollar, it survived.
 
mine was a female jag she killed 4 dovi 3 jags 2 jds she only left the breeding pair of jds for some reason she hung out with them forgot to mention in one day of me at work
 
breading oscars. never try to clean the slate tile they chose as their "SPOT" lol
 
For me, even though it's not CA/SA, was Metriaclima estherae (Red Zebra). It killed 8 of my fish. 5 were Africans, an Oscar that was 6", and two FMs. He was a jerk.
 
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