Salminus Franciscanus (Golden Dorado)

jlnguyen74

Potamotrygon
MFK Member
Mar 26, 2007
7,553
922
174
United Species of Arowana
So little time...so many different fishes out there. Let's not waste time.
Nice pack, Ken! I see you waste no time :) When they hit 16" mark, you can introduce them to the mahseer pond, or I'll make another trip ;)
 

thebiggerthebetter

Senior Curator
Staff member
MFK Member
Dec 31, 2009
16,283
14,496
3,910
Naples, FL, USA
Excellent. That's the way to do it - get them in quantity.

I got one, my first ever, from Jeff Rapps Aug-Sept 2016. It was a pellet-eating machine too till about 8"-10" and then stopped eating at all, at least I don't see it. It's been a few months now, I think. Around the same time it started messing more with my ~14" purple Labeo in its original 240 gal or the Labeo started messing with it, not clear, probably both.

Then it went through 4500 gal where it ripped up a bunch of fish, then into another 240 gal where it harassed a large pacu, now back to its original 240 gal but I rehomed the Labeo. It's got two 10" banded leporinus, one 6" Prochilodus lineatus, one 10" Asian USD catfish, and one smallish common pleco for tank mates - all jerks except for the pleco. It calmed down a lot now swimming calmly instead of flying around like a torpedo but still haven't seen it eat, neither pellets nor thawed fish. The latter I've never seen it take yet.

Now, AFAIU, golden dorado is brasiliensis. Just dorado is fransciscanus. Why do yo think yours might be golden? Moe says we almost never get them. Jeff's, now mine, was labeled brasiliensis but Moe thinks it's a frankie.
 

moe214

Goliath Tigerfish
MFK Member
Oct 13, 2014
5,332
2,772
178
Excellent. That's the way to do it - get them in quantity.

I got one, my first ever, from Jeff Rapps Aug-Sept 2016. It was a pellet-eating machine too till about 8"-10" and then stopped eating at all, at least I don't see it. It's been a few months now, I think. Around the same time it started messing more with my ~14" purple Labeo in its original 240 gal or the Labeo started messing with it, not clear, probably both.

Then it went through 4500 gal where it ripped up a bunch of fish, then into another 240 gal where it harassed a large pacu, now back to its original 240 gal but I rehomed the Labeo. It's got two 10" banded leporinus, one 6" Prochilodus lineatus, one 10" Asian USD catfish, and one smallish common pleco for tank mates - all jerks except for the pleco. It calmed down a lot now swimming calmly instead of flying around like a torpedo but still haven't seen it eat, neither pellets nor thawed fish. The latter I've never seen it take yet.

Now, AFAIU, golden dorado is brasiliensis. Just dorado is fransciscanus. Why do yo think yours might be golden? Moe says we almost never get them. Jeff's, now mine, was labeled brasiliensis but Moe thinks it's a frankie.
It could be on a hunger strike, I haven't seen my curupira eat for months as well until recently he's back to his greedy ways.

As far as the common name goes, golden dorado refers to both Frankie and brassi, they both get gold, it's just brassi gets a brighter golden color and usually covers more of its body but I have seen Frankies that were almost if not entirely gold on google search. It is just a common name they're sold as, which as you know common names can confuse people cause it can be the same for two fish, case in point, or it can be more fitting for a certain fish and that fish get mislabeled from what it's commonly known as etc. ken knows his are frankies because Wes, and Wes knows the collection point, afaik brassi and frankie don't come in contact anywhere in the wild unless one is introduced into the others habitat by man, which is a possibility but has not been proven afaik to date. The picture provided by Jeff if you scroll all the way down on his site are frankies, so if yours has the pointed nose like them it is likely Frankie, what makes it even more likely is he says they're captive bred and there are no known cases of breeding brassi in captivity where as frankies are farm bred in South America for food. However I will say, that the common "hobby" ID characteristic has been proven wrong in one case which was last year I believe me and chicx mainly participated in it if I remember correctly, the fish in question physically looked more similar to Frankie than brassi but it was in question, a quick LL scale count from a clear picture indicated it was brassi. But the pointed nose should still be a rule of thumb, not every fish looks the same as we know and some can be morphed extremely different or slightly. Another thing reported by DB who has kept multiple frankies and has two brassies, is that frankies behave much more aggressive towards each other and other species of fish.
 
  • Like
Reactions: thebiggerthebetter

thebiggerthebetter

Senior Curator
Staff member
MFK Member
Dec 31, 2009
16,283
14,496
3,910
Naples, FL, USA
Thanks, bro. Good read and learnings for me. Nothing beats an authoritative quick reply :D

It looks like I should read Chicx's sticky in earnest. Does everything or almost everything in it still hold AFA you know?
 

nzafi

Goliath Tigerfish
MFK Member
Mar 14, 2008
2,177
1,236
179
USA
thebiggerthebetter thebiggerthebetter and moe214 moe214 I was looking to get a dorado from Jeff back in August. He was claiming they were brasi and I questioned him on it. His response to me was as follows:

"In regards to confirmation of species, S. brasiliensis is the species that is well documented repeatedly in scientific studies from the extensive aquaculture market of dourado in the southern Brazil states of Sao Paulo and Minas Gerais.
S. brasiliensis is also native to these states.
That is the origin of the stock fish as well.

S. franciscanus is found further to the north in Bahia state and is described only from specimens collected in the Rio Sao Francisco watershed.
The natural range of this species is far more restricted than the huge range of S. brasiliensis and is very unlikely to be collected from the wild as per these restrictions to it's native habitat.
It's not the species that is widely bred in aquaculture, so I'm afraid that discussion of this species being sold as brasiliensis is likely in error.

The dorado are most aggressive towards similar looking fish or fish that may compete with them for occupation of upper water column."

Take what you want from that, and maybe challenge it, but I do know he is highly respected.
 

moe214

Goliath Tigerfish
MFK Member
Oct 13, 2014
5,332
2,772
178
thebiggerthebetter thebiggerthebetter and moe214 moe214 I was looking to get a dorado from Jeff back in August. He was claiming they were brasi and I questioned him on it. His response to me was as follows:

"In regards to confirmation of species, S. brasiliensis is the species that is well documented repeatedly in scientific studies from the extensive aquaculture market of dourado in the southern Brazil states of Sao Paulo and Minas Gerais.
S. brasiliensis is also native to these states.
That is the origin of the stock fish as well.

S. franciscanus is found further to the north in Bahia state and is described only from specimens collected in the Rio Sao Francisco watershed.
The natural range of this species is far more restricted than the huge range of S. brasiliensis and is very unlikely to be collected from the wild as per these restrictions to it's native habitat.
It's not the species that is widely bred in aquaculture, so I'm afraid that discussion of this species being sold as brasiliensis is likely in error.

The dorado are most aggressive towards similar looking fish or fish that may compete with them for occupation of upper water column."

Take what you want from that, and maybe challenge it, but I do know he is highly respected.
He is highly respected, but from everything I've ever read he has it backwards if what he said were true, he just said Frankie are hard to come by when in fact they are all we see in the hobby and that is by scientific characteristics, he can't argue that, only person in the u.s I know of with a true brassiliensis is DB and the case of the guy I mentioned when chicx proved me and some other members wrong with the scale count. Like I've told someone else, he is a knowledgeable person no doubt, but he doesn't know everything, you can't expect him to know everything about every piece of stock he sells. Not to down him, as his mistakes are far and few inbetween that I see, but two I can think off the top of my head are one of my own experience that and one on his site, he says vulture cats max at 20" but there are pictures of larger ones, and he sold me what was supposed to be a hoplerythrinus unitaeniatus or a gold wolffish, but instead I got a erythrinus sp Peru, the two look nothing alike.and I'm sure if you go down his list, you can find some minor mistakes about fish, I find he makes mistakes when it comes to oddballs, but cichlids are his specialty. I've read pretty extensively on these fish, I'm sure he doesn't have the time to do so. But hey take what you want from it.
 
  • Like
Reactions: thebiggerthebetter

moe214

Goliath Tigerfish
MFK Member
Oct 13, 2014
5,332
2,772
178
Thanks, bro. Good read and learnings for me. Nothing beats an authoritative quick reply :D

It looks like I should read Chicx's sticky in earnest. Does everything or almost everything in it still hold AFA you know?
And chicx sticky holds true still, I've not read any thing debunking it etc.

Couldn't find the ID thread for his specimen, but here is his update thread he made shortly after
https://www.monsterfishkeepers.com/...e-growth-and-development.653777/#post-7409992
 
  • Like
Reactions: thebiggerthebetter

nzafi

Goliath Tigerfish
MFK Member
Mar 14, 2008
2,177
1,236
179
USA
moe214 moe214 I agree with you. I just have not spend enough time with the species to challenge him or others. The fish I am actually knowledgeable on are piranha because I kept them exclusively for so many years. I am a newb with everything else :)
 

greenerinks

Giant Snakehead
MFK Member
Jan 6, 2014
800
1,043
144
Shanghai, China
Interesting thread however I'd like to add that I picked out my brasi from a batch of Frankies. There are usually a couple mixed in with a large batch of them (couple hundred). I'm assuming they aren't CB, if they are idk how the brasi were mixed in. Since you said their collection points are way off, how do these stragglers end up in the trade...?

IMG_7119.JPG
 

moe214

Goliath Tigerfish
MFK Member
Oct 13, 2014
5,332
2,772
178
Now, AFAIU, golden dorado is brasiliensis. Just dorado is fransciscanus. Why do yo think yours might be golden? Moe says we almost never get them. Jeff's, now mine, was labeled brasiliensis but Moe thinks it's a frankie.
Just wanted add real quick as I just looked at his stock list to look at a catfish he has that looks interesting, he says his are brassi but that they are from Brazil which is where frankies are from.

Interesting thread however I'd like to add that I picked out my brasi from a batch of Frankies. There are usually a couple mixed in with a large batch of them (couple hundred). I'm assuming they aren't CB, if they are idk how the brasi were mixed in. Since you said their collection points are way off, how do these stragglers end up in the trade...?

View attachment 1241810
Idk about where you are and how they get in there, I believe you're in Asia in which case you guys get all the good stuff lol, but in the u.s I believe there was one batch of true brassi's, it was how DB got his first one and then later on picked another one up from another hobbyist who got it from the same batch. And then there is the Jakob guy, idk if he's in the u.s or how he acquired it, other wise idk of any other cases in the u.s.
 
zoomed.com
hikariusa.com
aqaimports.com
Store