Sewellia Elongata and Pseudogastromyzon sp fighting

odyssey · Post by **odyssey** » Sun Aug 23, 2009 12:48 am

Hi everyone.
I took a territorial dispute of Sewellia Elongata and Pseudogastromyzon SP.
I show those pictures and video clip.
Video clip is in this Youtube.
http://www.youtube.com/watch?v=_feWPhUGJDM

plaalye · Post by **plaalye** » Sun Aug 23, 2009 1:29 am

Incredible shots odyssey!! looks like the sewellia came out on top.

Mad Duff · Post by **Mad Duff** » Sun Aug 23, 2009 2:54 am

Excellent photos and video footage

Do you see a lot of inter species squabbles?

I have to admit that I do keep all of my Sewellia separate now because of the amount of squabbling they do, after adding my Sewellia sp "spotted" to a tank full of gastromyzons and then losing all of the gastro's it seems clear that they will bully other species.

odyssey · Post by **odyssey** » Sun Aug 23, 2009 3:58 am

Hi Mad Duff!

Mad Duff wrote: Do you see a lot of inter species squabbles?

This big Sewellia Elongata did not usually fight very much.
Pseudogastromyzon sp of the newcomer seems to have picked a quarrel.

I breed slightly bigger Sewellia sp "spotted" with a lot of Gastromyzon and Stihodon in another tank.
That Sewellia sp "spotted" seems to be peaceful.

I have bred this kind of Pseudogastromyzon sp sometimes.
I consider them to be the most aggressive in a hillstream loach.

I thought that they sent it away and did not need to injure each other by a quarrel of a hillstream loach.
Indeed I am amazed to learn that there is it when causing death can sting an opponent.

About my conventional experience,the newcomer tends to fight intensely before being tame to a tank.
However, they do not fight very much when tame.
Because there are too many rivals, they seem to realize that it is useless resistance even if they send it away no matter how much.

But the weak is lost in malnutrition when quantity of the algae which is food was short.
Because there are many individuals which do not adjust to artificial feed in them, increases in production of the algae are always my cause of worries.

Francois van Brederode · Post by **Francois van Brederode** » Sun Aug 23, 2009 9:17 am

Great pictures of very nice looking hillies!
The video of the titel-fight is very cool.

piggy4 · Post by **piggy4** » Mon Aug 24, 2009 1:34 pm

Hi Odyssey , wonderful pics and video !

Jim Powers · Post by **Jim Powers** » Mon Aug 24, 2009 2:52 pm

Thanks for posting the great pics and video!!

Keith Wolcott · Post by **Keith Wolcott** » Mon Aug 24, 2009 7:21 pm

Just fantastic! Your sequence of still shots is action packed.

ch.koenig · Post by **ch.koenig** » Tue Aug 25, 2009 7:38 am

hi odyssey
great setting!

elongata seems to become darker when fighting? and p. sp "tungpeiensis" doesn't have a pale side and dark back when fighting like cheni and myersi (and some gastromyzon) do?
cheers charles

odyssey · Post by **odyssey** » Tue Aug 25, 2009 11:13 am

Hi everyone!
I am glad to have you enjoy it with my pictures.

ch.koenig wrote:elongata seems to become darker when fighting? and p. sp "tungpeiensis" doesn't have a pale side and dark back when fighting like cheni and myersi (and some gastromyzon) do?

As for S.elongata, a color of the body seems to hardly change at the time of quarrel.
It eats frozen bloodworms well.

Is it sure that Pseudogastromyzon sp is "tungpeiensis"?
A color of the body does not seem to change like P.cheni so that you say for the moment.
I added two pictures which seemed to be a young fish of this Pseudogastromyzon sp"?tungpeiensis?".
Young one is sometimes mixed in P.cheni, and it is sold.
I always observe water tanks of P.cheni of the aqua shop carefully.

Because there was the video of the quarrel of P.cheni, I uploaded video clip in Youtube a while ago.
The side becomes whitish by the quarrel (the latter half).

http://www.youtube.com/watch?v=bGPA7IvQSRI

bigpow · Post by **bigpow** » Tue Aug 25, 2009 11:36 am

Awesome video.
Like watching a sumo match.

FishyLady · Post by **FishyLady** » Tue Aug 25, 2009 1:56 pm

Personally, I hate seeing fish fight!!!!

Val

ch.koenig · Post by **ch.koenig** » Tue Aug 25, 2009 6:45 pm

hi odyssey
pseudogstromyzon tungpeiensis is not a valid name, p. changtingensis tungpeiensis is valid. I presume that the tungpeiensis showed by Zhou Hang as p. tungpeiensis is the valid one. and that the attribution is right.
but: nothing is shure in this genus. the attribution to a species just by looking at colour and pattern is dangerous.
and some scientists don't like the reference at all. revisions of the Sulawesi-shrimps have been made lately without reference to pattern and colour at all (caridina woltereckae, new species, "harlequin-shrimp", is an exeption, with the faint hint to similar looking specimen)!
that gives us the pleasure to find out which one is which one.

as a revision of all hillies of the continent and taiwan is not on the way, I count on the infos of Zhou Hang.
great details in the pics

cheers charles

odyssey · Post by **odyssey** » Wed Aug 26, 2009 10:43 am

Hi ch.koenig.

ch.koenig wrote: a species just by looking at colour and pattern is dangerous.

I also think that it is inappropriate to decide identification of a creature based on only a color and a design of appearance.
The identification of creature should be finally made by DNA analysis.

There was interesting news this year.
In fact, three fish species that they seemed that families were different was the same kind as a result of DNA analysis.
http://www.aquaticcommunity.com/news/lib/195

Perhaps I think that there is similar movement in the other countries, but the following actions are done in Japan.
http://gedimap.zool.kyoto-u.ac.jp/index ... a=1&lang=e

It is shortened rapidly in time to need it for DNA analysis by technical progress, and the expense falls steadily.
A general aquarist seems to get possible to easily ask it for DNA analysis soon.

ch.koenig · Post by **ch.koenig** » Wed Sep 02, 2009 5:45 pm

I just got the complete original paper about the Sulawesi-shrimps I mentioned.
my source was credible but wrong.
if you like shrimps in colours look at this. it's an incredible piece of work. never seen that before
http://rmbr.nus.edu.sg/rbz/biblio/57/57rbz343-452.pdf

sorry to have cited a so far reliable source. mea culpa. next time I'll verify myself.
thanks to Pascal Seewer for the hint - once more!
cheers charles

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Sewellia Elongata and Pseudogastromyzon sp fighting

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