Pacu are actually quite easy to take care of. They are related to Pirranah, but they are almost entirely vegetarian. Feed plenty of vegetable matter. The only difficulty in keeping Pacu is that they get extremely large, and can break aquariums by ramming into the glass when full grown! That being said, it is important to house them in very large, and very strong aquariums.
Pacu are not as aggressive as Piranhas but can be if threatened.
I think you mean Pacu: http://en.wikipedia.org/wiki/Pacu
There are several differences between the pacu and the piranha fish. One is their jaw alignment, their teeth are different. Their sizes are generally also different, a grown pacu is larger than a piranha.
Nothing you dumb person.
Pacu are a type of piranha. They do have scales, like most fish, as well as fins.
Actually the Oscar won't fight. I had a red-belled pacu in a tank with an Oscar and I came home one day and the pacu had eaten the Oscar and a kissing fish and a parrot fish. They aren't suppose to eat fish their size but I think mine taps more into the nature of his piranha cousins than most. If you get both just be careful and make sure the Oscar is bigger and dominant. On the contrary every Oscar and every pacu has different personalities. Some will fight some will not. I have an Oscar in a 1500 gallon tank that hates pacu. And I've got a pacu that hates Oscars... So you never know...
Normal tropical fish tank temperature; 77F-82F
Pacu are primarily vegetarians. They can eat meat, however it is not necessarily good for them. Meat from mammals is high in fat, and is more difficult for the pacu to digest. It also is less nutritious for them than vegetables, fruit or fish food. Shrimp is perfectly fine for a pacu to eat, however I would not turn it into his primary diet. I feed mine algae wafers, and the occasional peas, lettuce, and carrots. Mine also eats some of the regular fish flakes that I feed the other community fish in the tank with him.
Well they are vegetarian. They would eat small fish that could fit in their mouth if they were hungry also they are opportunist fish
Fish farm
It is never right to put Amphibians in with fish. The amphibian will poison the water.
You will take care of the baby fish