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Erromyzon sp "red spots"
November 15, 2013
3:10 pm
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torso
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Hi all

I've got a bunch lately, well conditioned.

The dominace-fights started right after introducing them into the tank, set up the day of arrival. These pics are not good, as the dominant specimen started on the backside-glass.

The largest male is 5 cm long, a second about 4.5 cm. The rest: 3-4 cm. Remarkable is the splitting up of the bars in the zwo dominant specimen. Could be due to the age. Red spots as well: could be that they vanish with age too.

The species is identic with 'Protomyzon' sinensis, bred by Gerhard Ott in 2002. Those had red spots as well. Three spawnings - similar to the spawning of Pseudogastromyzon sp on loaches - and some youngsters, turning up with 10 mm from the substrate, all resting at a small size. That reminds the main problem in breeding Sewellia spp: if they are not getting a lot of food the first two weeks they never recover and remain small. I tried with S. speciosa now this: constant feeding with powdered dry food, even whithout apparent spawning activities. That works, but a good water management is crucial.

The behaviour of the group is similar to other hillies: constant search for food, companions and then chasing the others away.

Enjoy the pics

Cheers Charles

 

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November 15, 2013
4:18 pm
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mikev
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Nice! Hope you breed them too!

November 16, 2013
3:52 am
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Quill
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They are Erromyzon compactus, which is described from Ba Che River, Quang Ninh Province, Vietnam in 2004.

Also they can be found in Gunagxi Province,China.

November 16, 2013
5:28 pm
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torso
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Thanks for the hint.

I only know this paper

http://www.beutelwolf.martin-s.....86p186.pdf

And the pics there won't fit. Boddy shape and markings are different.Do you have the paper about E. compactus?

Cheers Charles

November 16, 2013
8:49 pm
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mikev
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Wetspot's current photo: http://i1273.photobucket.com/albums/y410/TheWetSpotTropicalFish/Botias%20and%20Loaches/Erromyzonsinensis_zps7b01f1b3.jpgImage Enlarger

Same species? -- does not seem to be.

November 17, 2013
1:32 am
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Quill
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torso said
Thanks for the hint.

I only know this paper

http://www.beutelwolf.martin-s.....86p186.pdf

And the pics there won't fit. Boddy shape and markings are different.Do you have the paper about E. compactus?

Cheers Charles

Yes, that's the paper.Body shape is the same, and the red spots are just faded by formaldehyde.

November 21, 2013
4:22 pm
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mikev
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I'm not sure that the current "E.sinensis" is a sinensis...(see Wetspot's photo above, and I'll post my photos later -- I cannot see any red spots on mine?! )... the pattern is quite different. It is an errormyzon of some kind, maybe a new one.

November 21, 2013
8:46 pm
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torso
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To point that out, Mike: E. sinensis never has been traded (my opinion); the species, Gerhard Ott has bred in 2002, is identic with E. sp "red spots", red spots vanished after conservation (profile should be adapted); the question, if E. sp "red spots" is identic with E. compactus is open (for me); the species shown as E. sinensis by Wetspot is not E. sinensis; E. sinensis and E. sp from Wetspot don't show lateral red spots; I'm not even shure, that the E. sp by Wetspot fits to Erromyzon

Cheers Charles

November 21, 2013
9:25 pm
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mikev
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I have seen *one* real e.sinensis as a contaminant with p.cheni years ago...and someone here imported e.sinensis (looked like real things) 2 or 3 years ago (all died)... so they were in the trade.

As for the Wetspots fish: yeah, I think they are erromyzons... I have some here, will take photos later.

Was the Ott's account published somewhere? (I primarily want to know how they breed: diggers or scatterers? Suspect the former)

November 21, 2013
10:33 pm
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torso
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Ok, Mike.

As containment I would agree. That happens now and then with different species. In Europe I haven't seen them.

They are diggers as P. "cheni" are. Same procedure.

Paper: Matt has got it. And here

http://my-fish.org/erromyzon-sinensis/

Tap water Flensburg: Kh 7.3-8.1; Gh 7.7-8.4

Looking forward to pics.

Cheers Charles

November 22, 2013
2:20 am
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mikev
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this is the contaminant I saw back in 2006... never got that fish and felt guilty for years. But it is not just contaminants, Franksaquarium had a whole shipment in 2010 or 2011... all DOA but those where real "striped" sinensis... plus I recall Jim Powers owned a few years ago.

Thanks for the info -- this is all I needed to know (==treat them as Chenis or Disparis).

Will try with photos soon ... unfortunately, as happens too often lately, I had to grab them before it was too late, so they are in a 5g tank w/o substrate now .. hope they don't kill each other before I can set up a tank, they are juicier than red spots. .. what I meant to say is that photos will be crappy, no light on the tank either and it is in a dark corner of the room. :(

November 22, 2013
2:36 am
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Plaamoo
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Wetspot had "e. sinensis" a year or so ago. I saw a few in an LFS and they were striped like the ones in Charles' pics. They were very sickly looking so I didn't buy them. If they're from China Zhou Hang would be the one to ask about id.

November 22, 2013
4:14 am
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mikev
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Charles' pictures are not sinensis... otherwise I cannot believe I missed wetspot's listings, I check them all the time.

November 22, 2013
4:30 am
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Plaamoo
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Sorry, they weren't listed as e. sinensis after all, and it was 2 years ago.

http://www.seriouslyfish.com/f.....n-type-id/

November 22, 2013
4:37 am
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mikev
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OK... these are E.compactus per the above discussion.

Here are a couple of lousy shots of E.mottled

http://rainbow-fish.org/fishpic/err1.jpgImage Enlarger


http://rainbow-fish.org/fishpic/err2.jpgImage Enlarger

If you know how to ask Zhou Hang, please do. If this fails perhaps we should ask Heiko?

November 22, 2013
5:53 am
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Quill
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I can ask Zhou Hang, so you can tell me your questions.

November 22, 2013
5:55 am
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mikev
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Thanks! The question is if he knows anything about the "mottled" fish shown above.

I will ask Wetspot about the collection site but this is not likely to be answered.

November 22, 2013
5:58 am
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Quill
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I've given him this site, but you may wait for some days for his reply.

November 22, 2013
8:04 am
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Quill
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Zhou Hang said that erromyzon sp"red spots" isn't e.compactus. I'm sorry for my mistake.

And we can't see the pics of "mottled' fish.

November 22, 2013
8:59 am
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mikev
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Thanks.

Mottled fish photos are above on this thread, I'm copying the links to images here:

http://i1273.photobucket.com/a.....01f1b3.jpg
http://rainbow-fish.org/fishpic/err1.jpg
http://rainbow-fish.org/fishpic/err2.jpg

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