Pound for Pound toughest fish?

[hopelessamor]

All these posts on fish like the jaguar cichlid and oscars. Shrimp? Come on man. It absolutely has to be the hoplias aimara. Ive owned snakeheads for years and never seen a more aggresive fish than the Goliath Wolf Fish (hoplias aimara). Not to say the channa micros arent aggresive my 20 inch has eaten clown and royal knife fish 11-17inches,and massive 2 pound oscars a 12 inch gar pike. if he cant get them down he just rips em in half. Hard to find something that would be his tank mate.

oscars and jag cichlids are feeders for aimaras and micropeltes.....Tankmates for fullgrown or subadult hoplias aimaras?.....1" mollies and guppies

 

[The Predator]

I pay for Snakehead, cool monster.

 

[hotsauce]

my money is on a hungry rtc x tsn.

 

[Nabbig2]

In comparison to size, Convict hands down.

 

[apalmer]

I have a wolf and jag cichlid in one tank and i can say even though the wolf is alot larger, pound for pound my jag is much more aggressive. But due to my past experiences with convicts, they are very aggressive for there small size so i would have to say they are the toughest. well out of the fish i have kept anyway

 

[Vincentii]

pound for pound gas to undoubtetly be the Convict. a convict at say 3'' would terrorise a midas/red devil/dovii/guppy at the same size.

 

[knicks791]

Carassius auratus hands down.

 

[PNWFisherman]

Tiger Muskies I think are far more agressive than any other freshwater fish.

 

[bigd1023]

convict. i cant put any thing in my 55g with out the convicts killing it

 

[tiddlywinks]

id go with a goldfish
ghost shrimp
bull shark
common pleco
maby a ropefish
mekong giant catfish
and my fav the masquito larva<<<BEAST