Weird Question, but any freshwater fish that can bite fingers off?

wednesday13

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Aba knife and Aethiopicus lung are my wagers. They both have a gnarly set of shears. Not sure if theyd get through the bone but i think they might at 4’+ which they both attain.

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pacu mom

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Pacu have very strong jaws and are able to crack brazil nuts. Old video from 13 years ago. You can hear the bite sounds as the pacu finish off a whole carrot I threw in the tank.

Can't really see my pacus' teeth. One of my pacu had an encounter with a tank lid left ajar, and managed to slice off his lower lip. Pretty impressive incisors - not pointy like pirranha teeth - more like human teeth. Pacu also have two rows of upper incisors. BTW, my pacu's lower lip did regenerate.
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Very glad the lower lip regenerated, because he has such a beautiful grin. BTW, my pacu are both females, but I identified them as males 19 1/2 years ago, so they will forever be my boys. After all these years calling them "Leonardo" and "Adonis", to now call them "Leah" and Donna" just doesn't work for me.

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jjohnwm

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Does anyone here hunt? Has anyone ever tried, while field-dressing a deer or other critter, to actually cut even a small bone with a knife...with the strength of a human arm behind it? Good luck finding an aquarium fish that can do that...assuming that you can even figure out why we are trying to do so.

Weird question? Nah...

Simple teeth ain't going to cut the mustard here...or rather, the bone. Perhaps those porky monsters belonging to pacu mom pacu mom would have a chance, but...I'd be looking for something with powerful shearing/crushing dental equipment. I think that wednesday13 wednesday13 has it right with the African Lungfish or Aba Aba knife...and only the very largest specimens.
 
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tlindsey

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Does anyone here hunt? Has anyone ever tried, while field-dressing a deer or other critter, to actually cut even a small bone with a knife...with the strength of a human arm behind it? Good luck finding an aquarium fish that can do that...assuming that you can even figure out why we are trying to do so.

Weird question? Nah...

Simple teeth ain't going to cut the mustard here...or rather, the bone. Perhaps those porky monsters belonging to pacu mom pacu mom would have a chance, but...I'd be looking for something with powerful shearing/crushing dental equipment. I think that wednesday13 wednesday13 has it right with the African Lungfish or Aba Aba knife...and only the very largest specimens.
I would definitely include a mature black piranha on the list.
 

Backfromthedead

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Does anyone here hunt? Has anyone ever tried, while field-dressing a deer or other critter, to actually cut even a small bone with a knife...with the strength of a human arm behind it? Good luck finding an aquarium fish that can do that...assuming that you can even figure out why we are trying to do so.

Weird question? Nah...

Simple teeth ain't going to cut the mustard here...or rather, the bone. Perhaps those porky monsters belonging to pacu mom pacu mom would have a chance, but...I'd be looking for something with powerful shearing/crushing dental equipment. I think that wednesday13 wednesday13 has it right with the African Lungfish or Aba Aba knife...and only the very largest specimens.
I find shearing bone is quite quick and easy given the proper tools to do so. For example, a punch grip field dressing saw or maybe an 8 lb. Piranha's jaws.

I would double down on this concept since piranha jaws have been specifically evolved for such purposes--ripping off chunks of flesh and bone. They will cripple a larger fish first by almost surgically removing the fins before the final evisceration.
 
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