THE most aggresive fish

Well about a week ago I was watching animal planet and saw what a pirahna can really do to another tropical fish I'd say they are pretty mean not sure what other fish could top one.
 
Arowana might be a good choice! But you should consider how large your tank is going to be. An arowana needs a very large tank. Same with most mean fish though. Good Luck!
 
Its perfectly natural for live animals to be eaten by predators. Should we go through frozen euthanized rabbits out in the woods for the mountain lions? I don't know if I could watch it, but I don't think its such a bad thing.

Have you ever been tried to breath where there is no oxygen? Its awful, How can you say that that is humane? I personally wouldn't trust a pet store when they say they are humanely euthanised, and for what reason would a frozen mouse be healthier than a live mouse?


in the wild the animals have a chance at escape. any mouse dumb enough to walk into piranha infested waters in the wild and not turn around and climb back out is just helping evolution. but when you take one and throw it in a tank to swim around the top it has no chance of escape. and if i were a mouse i would definitely take a co2 gassing over having my legs and tail bit off and my stomach ripped up. that argument is very illegitimate.
 
where do people get this idea that its cool to have a killer fish? it's STUPID... you want vicious? get a cat. drop any mouse in front of it and watch what happens
 
red terror cichlid
 
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