PlanetCatfish.com

cool!

that's better news

frankly, I didn't believe in it anymore at all.
at least now you got a male; he's 1 lucky bum with a harem of 4

Currently in at Glaser: Ageneiosus sp 3 green stripe. Very likely these came from Tahuampa. I believe Neil has had these last year as Ageneiosus sp. blue.
Jools, thanks for the link.

Is it possible that Ageneiosus cf. atronasus don't like current?

When I wanted to change some water today I shut off the power to my heaters, filters and powerheads. As soon as I did that I saw that my Ageneiosus were more active than normal. More active but also less skittish. It's not that I have a stong current in that tank but it was weird to see their behavior changed drastically once the current was gone.

Marc van Arc wrote:Currently in at Glaser: Ageneiosus sp 3 green stripe.

Only seen them at one list till now and the price is really high, unfortunately. Next weekend I´m going to get my group of A. cf. atronasus.

Acanthicus wrote:Only seen them at one list till now and the price is really high, unfortunately.

Next weekend I´m going to get my group of A. cf. atronasus.

I have no idea; how much are they?

Where does that group come from, OF? Very nice species!

Bijn wrote:Is it possible that Ageneiosus cf. atronasus don't like current?

Good question. As most ageneiosids like current, I took it these do so too. But it may well be they don't. Wrt behaviour it strikes me these love to sit in plants during the day - contrary to my A. sp. 3, which love to swim constantly. So you may have a point.
On the other hand, when it's feeding time the atronasus can be seen picking food in the current....

Mine behave just like you discribe, sitting in plants and coming out for food, until the current is gone then they start to swim.

confusingly this can also be explained as that they do like currents....

when there's a current they can get their oxygen supply without moving;
once the current is cut they must swim in order to get enough water flowing through the gills....

the shark analogy.

it's not just sharks that need to swim in order to breathe; loads of bony fish have the same problem; once they stop moving they choke to death

there are several freshwater catfish species that can stay put and breathe as long as there is enough watermovement; but they'll get in serious trouble once the flow is down

Auchenipterus for example looks like a prime candidate of a fish that needs a strong current.

Marc van Arc wrote:I have no idea; how much are they?

About 60€ for one. And as well some Tatia sp. "Tahuayo Green Yellow Fin".

Marc van Arc wrote:Where does that group come from, OF? Very nice species!

Yes, I am really looking forward to it. They are about 5 - 7 cm.

Here's one for Steve.
It's from our new Peruvian friend Gorzak. Any ideas?
Btw: for some reason the head reminds me a lot of (a giant) Spinipterus.

What an amazing fish!!!!

At first I thought it was a xanthic or leucistic Trachycorystes trachycorystes but the post cleithral process and nuchal shields seem wrong (as well as the relative head width).

The lower jaw is too long for T. menezesi.

Do we know where this was caught?

I suppose it could be a Trachelyopterus (Parauchenipterus) sp?

The.Dark.One wrote:Do we know where this was caught?

We can ask Gorzak; he should know I reckon*.
Indeed a nice fish, although I suspect it will become less yellow once in captivity.

*Edit: mailed Gorzak wrt above question.

Steve, according to Gorzak they (8 specimens) were caught in the Itaya river.

Hi Marc and Steve
I kept these guys for 2 - 3 weeks and yes this golden yellow color slihghtly faded. But they were still yellow when they went.
I was told by Jools that there is an argument about that this may be a kind of nuptial mode and that they may be a nice colored Trachycorystes trachycorystes in love...
Well, I got this one about two months later (dont know if from same area...) is this also a Trachycorystes?
If so, then they may just be presumptuous males looking for nice fat big mouth females...
What do you think??

My goodness, this is all very confusing. Again I would say this is some kind of Trachelyopterus, but I'm far from sure.....

But what I really know is that you are spoiling us with these great pictures

I wonder what kind of price tag these are fetching?? Beautiful fish that I would love to keep someday..

**added to the fish bucket list..**

Gorzak

One good way to tell these guys apart is if they try to kill each other or not. Did you have the opportunity to keep them together? If so, what did they do?

Jools

Jools wrote:One good way to tell these guys apart is if they try to kill each other or not.

Could you explain that pls?

Hi Jools... you mean Marc and Steve or the Novias ....?

I have to put big PVC pipes (pieces) in the tanks so each one will fit in.
Then they come out during the night and feed with any thing they find in their way (small mp3 included...)

If there is no food enough, they probably kill each other!

So, its safer to keep them apart.

Gorzak wrote: Well, I got this one about two months later (dont know if from same area...) is this also a Trachycorystes?
If so, then they may just be presumptuous males looking for nice fat big mouth females...
What do you think??

This is for definite (which incidentally is the same fish as ). I know the scientific names for these fish and will do a piece on them soon. IMO it is not the same as the yellow specimen as the morphology of the pectoral fins is different amongst other things.

The.Dark.One wrote:This is

Trachelyopterus sp(3)

for definite (which incidentally is the same fish as

Trachycorystes sp(1)

)

Ha, that explains why it looked so damn familiar.....
I've been fooled by the size, as mine are not half as big despite the fact I've kept them since Feb 2007.

Marc van Arc wrote:

The.Dark.One wrote:This is

Trachelyopterus sp(3)

for definite (which incidentally is the same fish as

Trachycorystes sp(1)

)

Ha, that explains why it looked so damn familiar.....
I've been fooled by the size, as mine are not half as big despite the fact I've kept them since Feb 2007.

Mine stayed small too but others who have kept them they have got rather large!

Marc van Arc wrote:Currently in at Glaser: Ageneiosus sp 3 green stripe. Very likely these came from Tahuampa. I believe Neil has had these last year as Ageneiosus sp. blue.

203264-ageneiosus-sp-3a.jpg

Jools, thanks for the link.

There aren't many of them, 10-15 I think. They are about 10cm I guess, too small to sex them but they look good. They can use some extra food but they aren't skinny, absolutely not.

Acanthicus wrote: And as well some Tatia sp. "Tahuayo Green Yellow Fin".

nice big (15cm) fishes. Looking good and easy to sex. Really cool fishes.

Bijn wrote:

Acanthicus wrote: And as well some Tatia sp. "Tahuayo Green Yellow Fin".

nice big (15cm) fishes. Looking good and easy to sex. Really cool fishes.

Mine are about 15cm TL

15cm TL indeed, not SL. I forgot to specify this.

The.Dark.One wrote:

Bijn wrote:

Acanthicus wrote: And as well some Tatia sp. "Tahuayo Green Yellow Fin".

nice big (15cm) fishes. Looking good and easy to sex. Really cool fishes.

Mine are about 15cm TL

Hi Steve... what is the right scientific name for this Tahuayo Green Yellow fin novia? I've seen you posted a photo and may be also mentioned the c. name; but I cannot find it again...

Gorzak wrote: Hi Steve... what is the right scientific name for this Tahuayo Green Yellow fin novia? I've seen you posted a photo and may be also mentioned the c. name; but I cannot find it again...

So it isn't my brain that plays tricks with me, I've also been searching that post.

Bijn wrote:

Gorzak wrote: Hi Steve... what is the right scientific name for this Tahuayo Green Yellow fin novia? I've seen you posted a photo and may be also mentioned the c. name; but I cannot find it again...

So it isn't my brain that plays tricks with me, I've also been searching that post.

Halo Bijin.. good... there are two of us...

Here there are the fish... but not sure if there is a c. name for them.
This is amzing... the mouth and the throat are yellow.
I have a photo showing that ... cannot find it....

Did Steve actually have a name for these?
I'd say it is a member of the (ever growing) intermedia complex.