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Gastromyzon Id
May 1, 2010
7:51 pm
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Kajsa12
The Netherlands
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Today I bought a few Gastromyzon sp. for my new hillstream tank.

I have searched for the right ID for the loaches (KnowledgeBase and loaches.com), but maybe you can help me out. /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" />

3 species of this Gastromyzon, one with a damaged caudal fin.
Would this be Gastromyzon viriosus?

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One (the right one) looks a little different to me.

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And would this be Gastromyzon scitulus?

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May 1, 2010
7:55 pm
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Plaamoo
Bellingham, Washington U.S.A.
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OOOOH! Nice find kajsa!! /wub.gif" style="vertical-align:middle" emoid=":wub:" border="0" alt="wub.gif" /> Hopefully Charles will be along with your ID's.

May 1, 2010
9:43 pm
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torso
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very nice find indeed.
you are right
g virious - female, male, female and male (background)-
and g scitulus - male
as far I can see.
take some more pics if you want to be shure.
viriosus are not easy to find- take some more if you have the opportunity
cheers Charles

May 1, 2010
10:15 pm
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Kajsa12
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Thanks Charles. /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" />

Tomorrow I will try to take pictures of all of them.
Probably I have 4 G. viriosus (3 on pictures above) and 3 G. scitulus(1 on pictures above)

There were more viriosus in the lfs, so maybe I will go back next week to get some more.

May 2, 2010
9:02 pm
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Kajsa12
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Didn't manage to take some decent pictures today, but nevertheless I will show some.

This is the other spotted one.

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Three together (left one is perhaps a different species?)

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Left one (Could this be G. zebrinus? EDIT:or G. stellatus) /wacko.gif" style="vertical-align:middle" emoid=":wacko:" border="0" alt="wacko.gif" />

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hill8.jpgImage Enlarger

May 2, 2010
9:18 pm
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torso
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yes. a zebrinus female

May 13, 2010
8:39 pm
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Kajsa12
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Last week I bought 5 more Gastromyzon.
A few pics.

I'm not certain about this one, probably G. ctenocephalus

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Together with G. zebrinus
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G. zebrinus

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May 13, 2010
8:43 pm
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Kajsa12
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hill14.jpgImage Enlarger

G. zebrinus and G. viriosus

hill15.jpgImage Enlarger

hill21.jpgImage Enlarger

May 13, 2010
10:06 pm
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Matt
Málaga, Spain
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New spotted one is G. ctenocephalus for me Henri. /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" /> Did you find the G. viriosus as a batch or mixed in with something else?

Cake or death?
May 14, 2010
2:42 pm
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Kajsa12
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All this Gastromyzon species are being sold as G. punctulatus. /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" />
I don't know if they came in separately, but I will ask him.

May 14, 2010
5:13 pm
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torso
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ctenocephalus, farragus, ocellatus, scitulus, stellatus, viriosus and zebrinus come in as "punctulatus". sometimes other species - as hypergastromyzon - from the same areas go with. the trade - starting with the catchers - won't separate the species even if they could. no interest!
I should get some punctulatus, a sp and embalohensis soon. but not from the trade.

May 14, 2010
7:12 pm
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Kajsa12
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I always wonder why there is a lack of interest/knowledge in the trade.
When I walk into a aquariumshop (also the better ones) half of the fishes are incorrectly labeled.

Hmm, my third zebrinus might be a stellatus.
What do you think?

hill23.jpgImage Enlarger

left side
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right side
hill24.jpgImage Enlarger

May 15, 2010
2:31 pm
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Malti
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QUOTE (Kajsa12 @ May 14 2010, 08:55 PM) < {POST_SNAPBACK}>
I always wonder why there is a lack of interest/knowledge in the trade.
When I walk into a aquariumshop (also the better ones) half of the fishes are incorrectly labeled.

take that as a blessing - if they would classify them they'd probably double/triple prices /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" />

btw lovely fish, but I never kept them so can't help on ID

May 15, 2010
7:00 pm
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Plaamoo
Bellingham, Washington U.S.A.
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Charles is the one to answer your Q. kajsa. Might need a shot with the tail & dorsal displayed. There is a very fine line between the two for my eye, when the spots become dashes or stripes???? I've often wondered if they are the same species or maybe interbreed, but i think it's been genetically proven they are different.
Lovely fish you've found!!

May 15, 2010
8:37 pm
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Kajsa12
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Yes, I'm very happy with the hillstream loaches (I hope they're happy with me, too)
They're active and feeding well.
Most of them are a little shy when I enter the room (they hide between the rocks), but when I don't move too suddenly, they will emerge and seem to enjoy themselves.

Would it be wise to get some little Danio sp. (D. choprae or D. kyathit for instance) to keep the hillstream loaches company?
The tank is 100 x 30 x 40 cm.

Edit:

And G. zebrinus/stellatus nr. 4 and 5

hill25.jpgImage Enlarger

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May 15, 2010
11:10 pm
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Plaamoo
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I think the danios, or something similar, would be a great idea. Plenty of room and they'll provide nitrates to help grow algae for the gastros.

May 16, 2010
9:45 am
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Kajsa12
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And I hope the Gastro's become a little bolder when I introduce some little Danio's.

A few times a week I put in some stones from the Stiphodon tank.

hill28.jpgImage Enlarger

After one or two days it looks like this.

hill29.jpgImage Enlarger

May 19, 2010
11:28 am
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Matt
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According to Dr. Tan the main difference between G. zebrinus and G. stellatus is that the latter has a much wider head. Maybe a dorsal or ventral shot would help?

Cake or death?
May 19, 2010
8:57 pm
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torso
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the problem is that you can see the difference only in an underside view. the biggest stellatus I have are 6.5 cm long and look like the fourth one. the others are about 5 cm.
first and last (young specimen) are zebrinus. so try to judge the others /ohmy.gif" style="vertical-align:middle" emoid=":o" border="0" alt="ohmy.gif" />

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July 5, 2010
4:41 pm
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N0body Of The Goat
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QUOTE (torso @ May 19 2010, 09:40 PM) < {POST_SNAPBACK}>
the problem is that you can see the difference only in an underside view. the biggest stellatus I have are 6.5 cm long and look like the fourth one. the others are about 5 cm.
first and last (young specimen) are zebrinus. so try to judge the others /ohmy.gif" style="vertical-align:middle" emoid=":o" border="0" alt="ohmy.gif" />

Some great looking "Hillstream Loaches" there! /wub.gif" style="vertical-align:middle" emoid=":wub:" border="0" alt="wub.gif" />

Is there any webpage that can be recommended for showing all the more common found Hillstreams in our UK fish stores? I'm seriously contemplating a mix of these guys, possibly along with a Chaetosoma pleco and some "Giant Otos" (Hypoptopoma genus) for my riverine Rio240 (powered by a Juwel Bio8/1000 system and an Eheim 2078 "stream mode" external)... Providing there are no aggression through territory issues! /blush.gif" style="vertical-align:middle" emoid=":blush:" border="0" alt="blush.gif" />

Constantly juggling mainly African riverine fish between 6 tanks, from 54 to 566l in size!
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