Has anyone ever tried to put a Fahaka in with piranhas?

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On even ground (Ps and fahaka same size and introduced into the tank at the same time), I'd have to vote on the fahaka tearing up most of the Ps before a P feeding frenzy may damage the fahaka. My fahaka was quick to kill any fish around it by the time it reached a foot.

That being said, why would anyone even contemplate placing neutral to slightly acid pH preferring Ps in with a brackish alkaline pH preferring fahaka puffer?
 
fahaka will become last big meal for the piranha. they both will die if you put them together, period. Piranha will kill fahaka then get posion after eat it.
 
possible but some its also possible there life on other planets the fahaka would kill a few Ps and then grow faster then them and consider them food eventually Ps are famous for there teeth but a fahaka can do just as much if not more damage alot faster then a P
 
I have done tanks with RBP and ternetzi with other species of fish, in a 60 gallon. Here is the trick, research. Piranha feed on fins, nuts, berries, insects, and whatever is reasonable to them, most of the time. They do eat fish, if bitesize, or when no other food source is present. I had this tank going for many months before selling the Ps (boring after a while) without anything going wrong. I had 3 red bellies (4-5") and 1 ternetzi (5"), 3 red bellies (1"), 3 or 4 tinfoil barbs (occasional fin nips if I missed a feeding), some red tailed sharks, buffalohead cichlid, 2 gachuas, and a pleco. I've even seen one of the barbs peck at one of my red bellies, they seem to think they were the same fish. It was heavily planted, and lots of water movement. I fed them 2 or 3 times a day with krill, shrimp, beefheart, pellets and shrimp. Never had a tank large enough to house a fahaka, so I'm not sure if they could be mixed with any fish at all, but I'm sure I could mix fish most people couldn't.
 
I believe the fahaka will get the pirahanas 1st. Why do folks think it's OK to combine unsuitable fish & say well, if it doesn't work, I'll just remove the injured fish? Don't you realize the fish is very likely to get a bacterial ionfection from the wounds & die anyway?

As far as keeping 2 fahakas together--even the experts can't figure out how they get together to breed. How long have those fahakas been together? Are they sexually mature?

Here's a story about that, by a fellow keeping pufferfish for over 50 years:
BREEDING FAHAKA PUFFERS
 
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