Wild caught high fin C. paleatus

Post by **Marc van Arc** » 01 Dec 2006, 16:29

I don't know if this question has been raised before, but several LFS-ses here offer wild caught C. paleatus with elongated pectoral and dorsal spines. They look like a cross between S. macropterus and C. paleatus, although the largest part of this species would be paleatus orientated (highly built and rather short in length).
It's not the commonly available pathetic man-made hi fin paleatus, because only the dorsal and pectorals are enlongated.
Who fills me in?

Post by **Coryman** » 01 Dec 2006, 17:18

This species has in fact been described, but as yet the paper has not been published and therefore the name must remain undisclosed until it is.

Ian

Post by **Marc van Arc** » 01 Dec 2006, 17:41

Thanks Ian,
So it is in fact a "true" species. I take it these are better of with lower temperatures (20-22C)? The LFS has mature (?; 6 cms) specimen for the little amount of 3,95 euro (approx. 2,50 GBP). That doesn't seem too much, does it?

MatsP · Post by **MatsP** » 01 Dec 2006, 17:46

Â£2.50 is definitely a good price for any wild-caught Cory, in my area at least...

--
Mats

Post by **Coryman** » 01 Dec 2006, 20:34

I have it on good authority that the best temperature for these is a maximum of 17º C and that they do not breed above this. A fact that is proving true for my group at least. I think I will put them in an outside pool in the late spring.

The first three soft dorsal rays become greatly extended with age.

Ian

Post by **Marc van Arc** » 15 Dec 2006, 17:26

Today I bought a group of these. Not only because they are good looking, but also because there's a niche in my tank they fit in; there are no fishes that stir up and /or dig into the sand. The Dianema urostriatum are unwilling to do so and with lots of small bogwood and plants much dirt remained in the tank so far.
Unfortunately I read just now that they feel comfortable at a rather low temperature.....Can't keep them on 17 C, because their tankmates like it a little warmer. We'll see what happens. At the moment they are very happy with my riversand; the LFS tank had gravel.

Post by **Marc van Arc** » 19 Dec 2006, 22:05

These fish are doing great. I'm going to enlarge the group and have to make room. Luckily I've already found someone for the flagtail Dianemas. I'm not really sorry to let them go for these fish are very, very easily frightened. A kind of anti-dither fish, so to say.

Bas Pels · Post by **Bas Pels** » 21 Dec 2006, 20:43

My very first posing on this great forum........

In January last I visited Uruguay, and brought a lot of fishes with me. Among these 2 species of Corydoras, one from a little stream, Arroya Tropa Vieja, near the town Salinas, 30 km west of Montevideo, the other from a lake near the town Treinta y Tres.

The latter are almost exactly like the one coryman showed. That is, the males. The females are just like all C paleatus.

As Uruguay is semi-tropical, having a climate comparable with south Portugal / north Africa, the fishes (all) are currently at 8-12 degrees centigrade (I just keep the window open)

In summer they were outdoors, in ponds placed on the ground, facing south and the water has reached 37 degrees centigrades - followed by the 'coolness' of the night.

Bas

Post by **Marc van Arc** » 07 Jan 2007, 09:07

Coryman wrote: A fact that is proving true for my group at least.

Ian,
My corys have the habit of sitting motionless on the leaves just below the surface during the day. Imo all things should be well for them, except the temperature (24C).
Have you ever witnessed this behaviour with your group as well?

Post by **Coryman** » 10 Jan 2007, 20:39

If the temperature is on the high side the fish will try and stay where they are at he best oxygen level. If you maximise the oxygen levels by adding a couple of air-stones.

Ian

Post by **Marc van Arc** » 13 Jan 2007, 22:56

They are not feeling comfortable. As I can't lower the temperature because of the other inhabitants, I have no other option than find them a better home