Gestaltgal Posted August 6, 2021 Share Posted August 6, 2021 So say I was considering a stand alone tank (size/parameters are not an issue) designed to keep the meanest fish . I'm not talking the 1-off jerk fish we all seem to get every now and again, I'm thinking the meanest species kept in the hobby đ . What would I be looking for? Link to comment Share on other sites More sharing options...
Mmiller2001 Posted August 6, 2021 Share Posted August 6, 2021 Amano shrimp! 7 Link to comment Share on other sites More sharing options...
Dancing Matt Posted August 6, 2021 Share Posted August 6, 2021 My bettas have been murder fish... I heard pea puffers are also. 1 Link to comment Share on other sites More sharing options...
Daniel Posted August 6, 2021 Share Posted August 6, 2021 Historically, the aptly named 'Jack Dempsey' has taken this honor. 3 1 Link to comment Share on other sites More sharing options...
Maximus297759 Posted August 6, 2021 Share Posted August 6, 2021 (edited) Betta Iâve thrown 2 in a tank and in about minute they killed each other. So what could be worse then total destruction.   they are the FIGHTING FISH even my 70 mother know this. Edited August 6, 2021 by Maximus297759 1 Link to comment Share on other sites More sharing options...
Gestaltgal Posted August 6, 2021 Author Share Posted August 6, 2021 I've heard that wolf cichlids will bite their owners. Is this anything anybody has seen?? 1 Link to comment Share on other sites More sharing options...
GameCzar Posted August 6, 2021 Share Posted August 6, 2021 On 8/6/2021 at 3:00 PM, Daniel said: Historically, the aptly named 'Jack Dempsey' has taken this honor. Beautiful too. My first pet shop as a kid had one and he was awesome. To a kid he seemed like such a monster size! 1 Link to comment Share on other sites More sharing options...
Griznatch Posted August 6, 2021 Share Posted August 6, 2021 (edited) I'd say Jack Dempsey for pure angst. Although if you like keeping wrecking balls, you can't beat an Oscar. I've had both, and I'd have to say the Oscar was a better pet. He recognized me and I could hand feed him, he just destroyed everything in the tank. The Dempsey was just pure hatred, he was mad at the world and everything in it. Pretty fish though... Edited August 6, 2021 by Griznatch add more 1 1 Link to comment Share on other sites More sharing options...
lefty o Posted August 6, 2021 Share Posted August 6, 2021 not for the average hobbyist, but imo Gar. 1 1 Link to comment Share on other sites More sharing options...
Allen Anderson Posted August 6, 2021 Share Posted August 6, 2021 Oscars, they get quite large though. 2 Link to comment Share on other sites More sharing options...
GameCzar Posted August 6, 2021 Share Posted August 6, 2021 On 8/6/2021 at 4:04 PM, lefty o said: not for the average hobbyist, but imo Gar. @lefty oDo you watch the Fish Whisperer on YouTube? Link to comment Share on other sites More sharing options...
Taco Playz Posted August 6, 2021 Share Posted August 6, 2021 I have to say. My Golden Panchax killies are the MEANEST fish I've ever had. They bite me all the time when I am doing water changes. Even though it doesen't hurt it scares the Crap out of me. đ 3 Link to comment Share on other sites More sharing options...
lefty o Posted August 6, 2021 Share Posted August 6, 2021 On 8/6/2021 at 5:26 PM, GameCzar said: @lefty oDo you watch the Fish Whisperer on YouTube? never heard of it, but once upon a time i kept a couple of gar. 1 Link to comment Share on other sites More sharing options...
Patrick_G Posted August 6, 2021 Share Posted August 6, 2021 I had a Jack Dempsey as a kid. No one told me he couldnât be kept with other Cichlids so I kept him with a Jewel and a Convict. I think it was 29 gal. For some reason it worked.  2 Link to comment Share on other sites More sharing options...
Colu Posted August 7, 2021 Share Posted August 7, 2021  dovii cichlids can get petty aggressive 1 Link to comment Share on other sites More sharing options...
StevesFishTanks Posted August 7, 2021 Share Posted August 7, 2021 (edited) Meanest fish I'm currently keeping is a bass Edited August 7, 2021 by s1_ 4 Link to comment Share on other sites More sharing options...
Swred5 Posted August 7, 2021 Share Posted August 7, 2021 One of my Green spotted puffer will bite if you don't watch out. How about red or green terrors? 1 Link to comment Share on other sites More sharing options...
gardenman Posted August 7, 2021 Share Posted August 7, 2021 It kind of depends on what you mean by meanest. Female guppies will eat their own fry and do so happily. That's kind of mean. Some cichlids are known to stake out a territory that's six feet in diameter and attack anything that enters, whether it's something big and aggressive like a caiman or a tiny tetra. Wolf fish, gars, snakeheads, and lots of other fish tend to be a bit vicious. Piranhas are killing machines. I had a silver arowana that I had to keep a net between him and my hand or he'd attack me everytime I went into the tank. In my experience, Oscars and Jack Dempseys have been okay fish to keep. They're aggressive, but not crazy aggressive. At least the ones I've kept. There's the Eye Biter from Lake Malawi that's been known to attack a fish by eating its eye, then crippling the fish and either eating what it wants or leaving it to die. That's kind of mean. 1 Link to comment Share on other sites More sharing options...
GameCzar Posted August 7, 2021 Share Posted August 7, 2021 On 8/6/2021 at 6:16 PM, lefty o said: never heard of it, but once upon a time i kept a couple of gar. Check him out, he raised gar from babies and just recently moved them into a pond.  He hand feeds them, its a great channel. 1 Link to comment Share on other sites More sharing options...
sudofish Posted August 7, 2021 Share Posted August 7, 2021 Depending on your state you could get Piranhas. Not sure if they would qualify as "mean" or if they're just voracious eaters. I don't advocate for keeping them personally. I've seen them here locally and they look kind of boring in their own tank. 2 Link to comment Share on other sites More sharing options...
Jungle Fan Posted August 7, 2021 Share Posted August 7, 2021 (edited) If you've got space and budget for a minimum 300 gallon tank, and about $400 to invest on the fish you could be shopping for an up to 8 foot electric eel, maybe not the scariest looking,maybe not the most vicious in terms of biting but it could definitely help you get a buzz on during tank maintenance.đ I've always seen that the novelty of keeping the fish capable of the most violence, or the scariest looking, and the like wears of fairly quickly. I know someone who raises Piranhas in Germany and has supplied them to zoos besides private customers, and he once told me that he can't count the phone calls he received from customers later on that stated that they were disappointed that their tanks didn't turn into a swirling mess of food and blood at feeding times; and they were now looking for an aquarium, or zoo to take them off their hands. Of course none of them jumped at the chance to have to immediately build another display at the drop of the hat. I believe if you are interested in a particular fish because you find it interesting after having read about it and studied about it is one thing but the sheer fact that it is the "meanest" fish around is a motivation that won't hold its fascination for long. My oldest brother once ended up with a dwarf caiman that one of his friends got to pawn off on him, he fell for the "dwarf" portion which still means up to 5 feet; the whole family ended up helping him find that reptile farm that agreed to make an exception and take it to add to their collection of crocodilians because they didn't yet have a Cuvier's dwarf caiman. I'm with @sudofisheven the "monster fish" with the worst publicity generally ends up by itself in a tank looking boring; a tank with colorful fish, or fish with interesting behavior has more to offer in my book (i.e mudskippers, archer fish, if you want some unusual looking, or unusual behaving fish). Edited August 7, 2021 by Jungle Fan 6 Link to comment Share on other sites More sharing options...
Gestaltgal Posted August 10, 2021 Author Share Posted August 10, 2021 On 8/7/2021 at 10:47 AM, sudofish said: Depending on your state you could get Piranhas. Not sure if they would qualify as "mean" or if they're just voracious eaters. I don't advocate for keeping them personally. I've seen them here locally and they look kind of boring in their own tank. I've also heard that they aren't much to look at unless they are feeding. They just kind of sit still. Link to comment Share on other sites More sharing options...
lefty o Posted August 10, 2021 Share Posted August 10, 2021 On 8/7/2021 at 2:16 PM, Jungle Fan said: If you've got space and budget for a minimum 300 gallon tank, and about $400 to invest on the fish you could be shopping for an up to 8 foot electric eel, maybe not the scariest looking,maybe not the most vicious in terms of biting but it could definitely help you get a buzz on during tank maintenance.đ I've always seen that the novelty of keeping the fish capable of the most violence, or the scariest looking, and the like wears of fairly quickly. I know someone who raises Piranhas in Germany and has supplied them to zoos besides private customers, and he once told me that he can't count the phone calls he received from customers later on that stated that they were disappointed that their tanks didn't turn into a swirling mess of food and blood at feeding times; and they were now looking for an aquarium, or zoo to take them off their hands. Of course none of them jumped at the chance to have to immediately build another display at the drop of the hat. I believe if you are interested in a particular fish because you find it interesting after having read about it and studied about it is one thing but the sheer fact that it is the "meanest" fish around is a motivation that won't hold its fascination for long. My oldest brother once ended up with a dwarf caiman that one of his friends got to pawn off on him, he fell for the "dwarf" portion which still means up to 5 feet; the whole family ended up helping him find that reptile farm that agreed to make an exception and take it to add to their collection of crocodilians because they didn't yet have a Cuvier's dwarf caiman. I'm with @sudofisheven the "monster fish" with the worst publicity generally ends up by itself in a tank looking boring; a tank with colorful fish, or fish with interesting behavior has more to offer in my book (i.e mudskippers, archer fish, if you want some unusual looking, or unusual behaving fish). i can certainly see this aspect of it. in my own case with the gar, particularily the long nose gar, that was a fascinating fish to watch. you could see him think and solve problems of how to get baitfish out of cracks etc. that one also had reverse, ive never seen any other fish that could hook its tail around and use it to back straight up. very tame most of the time, when tank cleaning you could grab it and move it out of the way and it could care less. just dont pick it up out of the water. only do that once to learn you have an instant fight on your hands, and everything is getting wet. feeding time was always cool too, when the gar's nailed a minnow, it was like a glitter ball exploded in the tank. 1 Link to comment Share on other sites More sharing options...
TankofFish Posted August 10, 2021 Share Posted August 10, 2021 On 8/6/2021 at 4:36 PM, Gestaltgal said: I've heard that wolf cichlids will bite their owners. Is this anything anybody has seen?? I so wanted one and my LFS had one, he talked me out of it cause he said the fish I had in my tank would be killed once the wolf got a little older and my 150 gallon just was not big enough for a fish that could reach 28 inches, at least I didn't think so 1 Link to comment Share on other sites More sharing options...
mountaintoppufferkeeper Posted August 10, 2021 Share Posted August 10, 2021 (edited) My vote is a two way tie between speices i have or do keep: The bucktooth tetra are a fun "mean" mid sized schooling tetra especially in a larger school. A Bucktooth feeding frenzy is awesome and mean looking beefheart cubs are quite the show. They are primarily a scale eater in the wild so will pack hunt scales off larger fish, piranah, etc by darting along side and ripping off scales one by one. They will also eat smaller prey whole and pretty much obliterate anything they deem edible. The school will turn on weaker members and consume them. Pretty nice looking in a planted tank. The bigger the better tank footprint wise but i did them in a 40 breeder and it was awesome. Orinoco dwarf pike are ridiculously mean as well. They have consumed fish almost 3/4 their size whole and attacked larger fish by launching fullspeed broadside attacks and removing mouthfulls of whatever they hit. Thats about as mean as it gets. Mekong Puffers are a distant third for me. They primarily fight eachother, which is rare once the territory is established, no damage noted but it is pretty brutally mean to see when an argument occurs. Does seem to lead to breeding and fry though so đ¤ˇââď¸Â Edited August 10, 2021 by mountaintoppufferkeeper 1 Link to comment Share on other sites More sharing options...
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