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

[prcdslnc13]

For me it was a 13" male flowerhorn. I got this guy on a whim when he was 6ish inches. As he grew he killed an adult male red devil, adult male oscar, a dempsey, a juvi buttikoferi, and then he bred with an adult female managuense let her get the babys to fry and then pretty much ripped her in half.

He had a 55 to himself after that one until I moved out of my moms house and sold him. I miss that fish haha.

 

[fishman112]

An Ill tempered neon tetra.
Ferocity at it's max.

 

[BooshWacka]

Socolofi Male African Cichlid

killed my 9in pleco, bullies everything in the tank and hes the smallest one

 

[riley101]

my rose queen when it was around 2 inches it killed another rose 8 of my sisters africans and is now paired up with my texas and dominating a oscar twice its size

 

[riley101]

i just looked in mah tank and my texas and rose queen have eggs!!!!!!!!! they look sterilized to!!!!!!!!!!!!!!!!!!!!!

 

[Danzig86]

I have one that smokes cigarettes and carries a switchblade.

HAHAHAHAHAHAHAHAHAHAHAHAHA is that a greaser fish???
My tiger oscar although to me is sweet and innocent when i bought him @ 2inches he apparently killed a black shark twice his size, but the way the guy i bought him from describe it was "It looked like the oscar had molested it with a shotgun!!!!" I'd say midas though those guys are nuts.

 

[redpolo4]

my oscar

 

[redpolo4]

17" tiger oscar for me. terrorizes all the other fish and has killed about 6 or 7 fis. i cnt remember.

 

[fishfreak2009]

most definitely my little guppies. Chewed the fins off a 14 inch bala shark!

 

[Tri-Fisher]

Red Devil for shure! Only fish to draw blood on my hand! Its like a bite and twist!