Chasmocranus longior ?

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kamas88
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Chasmocranus longior ?

Post by kamas88 » Fri Dec 30, 2016 2:59 pm

Hi,

any doubts on this ID ?

Image

Image

I have five of them from Cottica River in Suriname.

Cheers,
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Karsten

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Re: Chasmocranus longior ?

Post by kruseman » Fri Dec 30, 2016 4:24 pm

Hi,

I don't see a picture...

kamas88
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Re: Chasmocranus longior ?

Post by kamas88 » Fri Dec 30, 2016 4:39 pm

Hi,

it seems that the hosting site is currently down.
They should reappear soon.

However, I have attached them again.

Cheers,
Attachments
Chasmocranus_longior_10586_800.jpg
Chasmocranus_longior_10567_800.jpg
--

Karsten

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Re: Chasmocranus longior ?

Post by kruseman » Fri Dec 30, 2016 4:57 pm

I checked "The freshwater fishes of Surinam".

C. longior:

...color dark grey-brown with a whitish vertical band just behind the head....

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Re: Chasmocranus longior ?

Post by kamas88 » Fri Dec 30, 2016 8:52 pm

Hi,

I have the same book and only based on this I came to the same conclusion.
However, last year at Gran Rio we caught this attached specimen which was also identified as Chasmocranus longior.
This had a much more typical pattern and looks quite different (patternwise). That's why I was not 100% sure...

Cheers,
Attachments
Chasmocranus_longior_2290.jpg
--

Karsten

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Re: Chasmocranus longior ?

Post by amiidae » Sat Dec 31, 2016 8:56 am

I got one specimen imported fm Suriname too.

Any advise on their basic requirements like water parameters etc ? Do they need fast water flow ?

Thks
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Re: Chasmocranus longior ?

Post by amiidae » Sat Dec 31, 2016 10:35 am

Here is my fish. :)

Image

Still under stressed color.
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kamas88
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Re: Chasmocranus longior ?

Post by kamas88 » Sat Dec 31, 2016 11:27 am

Hi,

this is the place where I caught them (upper course of Cottica river):

Image

Depending on the exact place the water current was quite different. I saw and caught them between the pebbles at places with good water flow. I was mainly looking for Corys, so basically they were only by-catches.
At other places with deeper water and less current I have not really tried.

Here you can find more pictures of other (catfish) species found there: Welsfang in Surinam - Cottica River.

We have not measures any water parameters, but they are pretty much the same over there in all rivers if you skip the black water creeks of the savanna belt, slightly acidic with a low conductivity (20..30 uS/cm), temperature should have been around 26-28 °C as it was partially in the shadow.

The single specimen from Gran Rio (close to a waterfall/rapid) was in our fish trap, the water temperature there was 30 °C, conductivity 18 uS/cm, pH of 6.

What's the size of your fish, do you think it's fully grown ?
Mine are still rather small, I guess around 6 cm.

Cheers,
--

Karsten

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Re: Chasmocranus longior ?

Post by kruseman » Sat Dec 31, 2016 8:35 pm

I caught this one in French Guiana. C. brevior. Quite different from your fish.

Check this site
https://inpn.mnhn.fr/espece/cd_nom/423711?lg=en
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IMG_9198.JPG

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Re: Chasmocranus longior ?

Post by amiidae » Sun Jan 01, 2017 12:00 am

Thanks for the info, Karsten.

My cat is abt 7CM TL. Marking wise, I too think they look diff as compared to C. longior on PC cat-elog.

What do you feed them ?
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kamas88
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Re: Chasmocranus longior ?

Post by kamas88 » Sun Jan 01, 2017 2:51 pm

Hi,
amiidae wrote:What do you feed them ?
pretty much the standard food, tablets and also deep frozen brine shrimps.

Cheers,
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Re: Chasmocranus longior ?

Post by amiidae » Mon Jan 02, 2017 12:41 am

Thanks again. My fish took frozen blood worm and I hope to get it to feed pellets.

btw, I observed that it is pretty out going. Constantly moving around instead of hiding. What about yours ?
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kamas88
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Re: Chasmocranus longior ?

Post by kamas88 » Mon Jan 02, 2017 12:59 pm

Hi,

in the quarantine tank they were all the time hiding even though there were nearly no places to hide.
Now since a few days they share with Ancistrus temminckii and some undescribed Lithoxus a tank with sand bottom, a few stones, caves and a lot of wood. With other words they have plenty places to hide and thus they are much more active now.
They're in general quite peaceful and not at all afraid of the much bigger tank mates but don't tolerate their fellows nearby.

Cheers,
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Karsten

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Re: Chasmocranus longior ?

Post by amiidae » Sat Feb 11, 2017 7:26 am

Here is an update. :)
Fish put on some wt and color stabilized.
Image
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Re: Chasmocranus longior ?

Post by amiidae » Sat Apr 08, 2017 2:55 am

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Re: Chasmocranus longior ?

Post by amiidae » Mon Sep 11, 2017 4:50 am

Almost 6inch TL now. :)
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Re: Chasmocranus longior ?

Post by Jools » Mon Sep 11, 2017 12:13 pm

:-) May I use that picture?

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Re: Chasmocranus longior ?

Post by amiidae » Mon Sep 11, 2017 12:24 pm

Sent ! :)
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