Can Anyone ID This Piranha?

[dudey]

I wasn't expecting to buy a Piranha today but saw this guy for $14.95 so couldn't pass him up.
He's obviously a Rhom of some sort. I just don't know which species.
http://viewmorepics.myspace.com/ind...ID=239002420&albumID=1180617&imageID=16309961

S rhombeus is the species. Are you asking about physical variants such as diamond?


to the above, don't think there is any way its a gibbus. s. gibbus are only collected from Rio Araguaia, so if the collection point is unknown cant really determine for sure. Also gill plates on gibbus are yellow as opposed to red/orange.

Try to snap a better picture, looks like a rhom to me though

 

[Ohio Entusiast]

I had originally had in mind to ask; ''Can Anyone ID This Serrasalmus but mistakenly wrote ''Rhom'' after a few cocktails. He's obviously a species of Serrasalmus but I don't know which species.
I've been thinking he's a Rhombeous but since he doesn't have red eyes I'm thinking otherwise. Wouldn't a Rhomb have red eyes at 5'' long? I've only kept Pygocentrus up to this point so I'm new with anything other than them.

 

[DarthRhom]

I think S.Rhombeus.

 

[dudey]

I had originally had in mind to ask; ''Can Anyone ID This Serrasalmus but mistakenly wrote ''Rhom'' after a few cocktails. He's obviously a species of Serrasalmus but I don't know which species.
I've been thinking he's a Rhombeous but since he doesn't have red eyes I'm thinking otherwise. Wouldn't a Rhomb have red eyes at 5'' long? I've only kept Pygocentrus up to this point so I'm new with anything other than them.

gotcha, usually it starts to develop around 5 inches might just need a couple months for it to come out.

look at the scutes on its belly, if they are irregular its a sanchezi, if they are neat and orderly rhom, maybe compressus.

try and get a better pic up whenever you can but for 15$ I would grab him if you have the room if didn't already

 

[Ohio Entusiast]

gotcha, usually it starts to develop around 5 inches might just need a couple months for it to come out.

look at the scutes on its belly, if they are irregular its a sanchezi, if they are neat and orderly rhom, maybe compressus.

try and get a better pic up whenever you can but for 15$ I would grab him if you have the room if didn't already

The scutes are all more less uniform.

 

[jp80911]

from the second pic it doesn't look as elongated as the first one...so I retract my first statement about being gibbus. could be a rhom but I haven't see any rhom with that much red/orange color on the throat belly area.
see if you can get few other better quality pics.

 

[Diogenes]

The scutes are all more less uniform.

it doesn't look like a comp to me. There is no terminal band of dark tissue on the tail and the body is not laterally compressed enough, indeed it was mistaken for the elongated gibbus a moment ago. The jaw does not appear to be upturned in the same manner as a comp too. Comps sort of have a frowny face.

In the last pic it looks like a dead ringer for a sanchezi, but if you say the scutes are orderly then it most be some sort of Rhom CF or something none of us have mentioned so far. If you squint right, it sort of looks like other unclear photos of irritans. The tail suggests this also.

If you somehow lucked up (and I doubt it) and bought an unlabeled S. irritans for 15$ then i think you will be the most envied keeper on MFK.

A note on sanchezi scutes:

http://www.piranha-fury.com/pfury/index.php?showtopic=72870

at any rate without better pics, and maybe even DNA analysis the chances of us conclusively identifying this fish are slim.

 

[dudey]

Im going to say from the looks of that picture sanchezi, could be rhom still though

 

[JoeDizzleMPLS]

looks like sanchezi at first glance, but i'd need better pics to be 100%

 

[Ohio Entusiast]

Thanks guys for all your responses!
I met a local guy fairly knowledgeable of Serrasalmus species and he feels it's a Rhom from Peru. I'm not sure if that's accurate because he's not developed yet but I'm going on that for the time being.

He's already getting better color, will nip at my gravel siphon during water changes and will come right to the front of the glass and stare at me. He's eaten 2 Mollies every day I've had him so I feel he's acclimating well.