THE most aggresive fish

depends what you mean by mean? anyfish will eat smaller fish but that doesnt make it mean. so maybe you mean overly aggressive? if thats the case yeah id go with red devils too, they are pretty relentless in their killings and seem to kill for the fun of it.
exodons are notorious eye eaters if thats your fancy
red tailed catfish arent mean, their actually pretty sweet and well manered, they will eat anything that fits in their mouth but thats just a food source.
flowerhorn cichlids can terrorize its tankmates and may even kill a red devil matched in size...so its a toss up between those 2 cichlids for me.
i have a 4" red tailed shark thats mean...do you want him? lol
hes in with central american cichlids twice his size and he bullies everyone
 
Red-devils are rather tame IMO. I would root for a convict of equal size in a fight. Great Whites are VERY aggressive. Since you didnt specify a tank size, I would recomend one of those or possibly a tiger shark. If your tank is a bit smaller, I will agree with echo that ottos attack algae with the same ferocity that pirhanas attack mice.

Seriously, you are going to have a hard time finding the MOST aggressive fish. Theres debate and oppinion and difference in individual fishs' personalities to contend with. Im sure a pirhana is agro enough for you, or if theres something else you like, get it and make sure to give it proper care.
 
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Walker_ said:
really? the LFS in the mall has two here, would it be worth my while to buy them up and list them on aquabid?
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They are illegal in the US. I don't think they're illegal in Canada yet.
 
My dear God, you can get FROZEN FEEDER RODENTS, DO NOT USE LIVE. Frozen feeder mice are available at PETSMART for 6 for 9.99 USD, they are NOT hard to find.

Or does drowning live animals as intelligent as dogs and smarter than horses as rats are turn you on somehow? Live feeding of rodents to other animals is considered animal cruelty and ILLEGAL in some countries (like the UK and Australia), but sadly not in the US. Of course, the UK has been breeding rats and mice for SHOW for over 100 years.

I have fifteen pet rats and a few are pedigreed show-quality animals. I love them like most people with heart love their dogs -- they're affectionate, learn their names, learn tricks, give kisses, VERY rarely bite, cuddle with you, follow you around the house like a puppy, you name it. I love them like most people with heart love their dogs and cats.

I see a lot of talk about how fish should be considered companion animals and treated humanely on these forums. Why doesn't this extend to companion rodents as well? Those little rats and mice you buy out of those feederbins and toss helplessly into one of the the most terrible deaths possible could make one of the most wonderful pets you've ever had.

The frozen mice and rats sold in many pet stores are HUMANELY EUTHANISED, usually using CO2, before they're frozen and offered as a food item for your other pets. Plus, they're gut-loaded and a healthier alternative for your animal.

USE THEM.
 
About the snakeheads....

Please don't buy one. If you do, make sure you have the appropriate housing until it dies. The snakeheads are similar to snakes in that, once the owner can no longer take care of this fish, they release it into the wild.

The problem with that: They kill everything they can, they spawn like rabbits, and can live in pretty much any water condition & temp. We are having a huge problem with these up in my area because someone released 5-6 of them into a local waterway, and since then nothing has been the same.
 
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