what is the difference between a red throat and a black piranha??

[johnseito]

Does black piranha have red throats? Today I went to a fish store and I see a bunch of red throats that I thought were black piranha.

I brought a black piranha a year ago and it has red throat so now I don't know if it is truly a black piranha or a red throat.

Let me know, I would like to know more about black piranha.

thx

 

[poly-nomial]

Black piranhas are much more aggresive, rare and expensive. They must be kept singly. they have a similar body shape and requirements but the black piranha likes to be alone. But i am no expert.

 

[johnseito]

Ok, thanks. that I know, but can you tell a red throat apart from a black piranha?

and do black piranha at about 5 inch have red throat?

 

[jp80911]

post a picture of your fish and we can get a better idea.
some rhom has red on the gill plate, but I've never seen one with red throat, most are yellow if there's any color at all.
the one you saw is probably sanchezi

 

[johnseito]

here is the pics. I brought him a year ago, I ask for black piranha and this is what they gave me. Since I went to the store and I see red throat today and they look like my fish, now I don't know if he is red throat or black piranha.

I red some site say that black piranha if they have a red belly means is a male, but I don't know if that is true and I don't know if black piranha eve has red throats.

take a look at the picture and let me know what you think.


http://picasaweb.google.com/Johnseito/Fish#

I hope is not a sanchezi b/c the person I brought it from say is black piranha. Also is sanchezi same as red throat?

thx

 

[MarilynMonroe]

imo it is not a rhom, looks like a sanchezi. go to PiranhaFury.com they will tell you anything you want to know about your piranha.

 

[johnseito]

so the guy sold me sanchezi and say is a black piranha??

so is sanchezi same as red throat piranha, I saw red throat today and it look like my fish.

 

[johnseito]

I can't post in piranha fury for some reason, why is that?

so for a whole year, I was lead to believe that is a black piranha??

anyone else have anything to say, is this a black piranha?

 

[Diogenes]

I can't post in piranha fury for some reason, why is that?

so for a whole year, I was lead to believe that is a black piranha??

anyone else have anything to say, is this a black piranha?

I cant get your pic to load, but "black piranha" and "red belly" are often used as generic common names for members of the serrasalmus and pygocentrus genera respectively. Technically, P. natterreri is the RBP, and S. rhombeus is the black piranha, but members of either genus can be referred to by these catch all names by people who don't know that much about them (...like people that work at the LFS).

 

[johnseito]

yes I know there is a big difference with red belly and a black piranha. red belly are more rounder and blacks no so.

but I am confused as to a red throat to a black piranha, both have same body shape. and the red throat I saw today look very much like my fish even though my fish I brought is consider to be a black piranha from the person who sold it to me.

I noticed this fish gotten a bit aggressive over time, like if I move my hand next to the tank, he would take notice and react to it. not sure if red throat or sanchezi is like that.