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Questions on Danio
August 25, 2009
12:40 pm
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Matt
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I had a few fry from my D. choprae in England but it was a case of them simply appearing in the tank alongside the adults. What methods do you guys employ for more controlled harvesting of fry?

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August 25, 2009
4:20 pm
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David Marshall
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Hey Matt

Choices for spawning Danios:

1. Place Cabomba or like plants into 2 or 3 (more if aquarium is large) small plant pots Pack marbles around the plants. Enough of the spawning activity, from a mature group of Danios, nearly always takes place around the plants to enable a number of eggs to fall between the marbles and, thus, find safety.

2. Place two conditioned females and a male into a cullander (sorry if wrong spelling but you know what I mean). When trio spawn eggs fall through the holes and into a bare tank below.

3. I have not tried this one, to cruel for me, but am told it works? Place several mature Danios into an aquarium with a single Leaffish. Instinct of survival triggers the Danios to spawn. When all the adult Danios disappear then remove the Leaffish and you should, in theory, be left with an aquarium of Danio fry?

Hope this helps.

Regards David

August 26, 2009
10:09 pm
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Matt
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Hey David is the "cullander" a Fang or a Sven? Sorry couldn't resist...

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August 26, 2009
11:05 pm
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dunc
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QUOTE (David Marshall @ Aug 25 2009, 05:03 PM) < {POST_SNAPBACK}>
3. I have not tried this one, to cruel for me, but am told it works? Place several mature Danios into an aquarium with a single Leaffish. Instinct of survival triggers the Danios to spawn. When all the adult Danios disappear then remove the Leaffish and you should, in theory, be left with an aquarium of Danio fry?


What :/ I don't even know what to say to that

August 27, 2009
3:26 pm
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David Marshall
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Hey

Very funny Matt.

Dunc when Matt asked the methods to spawn Danios I replied with the range of ways I know of. As I said I would not try the Leaffish method myself but know of folk who have -and am told that it does work.

Regards David

August 27, 2009
4:36 pm
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andy rushworth
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August 27, 2008
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Ha ha ha I like that Matt /wub.gif" style="vertical-align:middle" emoid=":wub:" border="0" alt="wub.gif" /> , Hell Davy that a bit like grabbing the stewardess on a doomed flight /laugh.gif" style="vertical-align:middle" emoid="Laugh" border="0" alt="laugh.gif" /> /blink.gif" style="vertical-align:middle" emoid=":blink:" border="0" alt="blink.gif" /> /wacko.gif" style="vertical-align:middle" emoid=":wacko:" border="0" alt="wacko.gif" />

August 27, 2009
5:04 pm
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Matt
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Changed the title of the thread as I have another question lol.

Does D. dangila really grow to 6" in length? Somehow I doubt it...

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August 27, 2009
6:23 pm
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dunc
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QUOTE (David Marshall @ Aug 27 2009, 04:09 PM) < {POST_SNAPBACK}>
Hey

Very funny Matt.

Dunc when Matt asked the methods to spawn Danios I replied with the range of ways I know of. As I said I would not try the Leaffish method myself but know of folk who have -and am told that it does work.

Regards David


David... /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" /> I wasn't saying anything about you - I was just showing my disdain for the method.

August 27, 2009
6:54 pm
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andy rushworth
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Hi Matt , me and Mick had some pretty big Dangilas , possibly 5 inch standard length ? I'm not 100% but it might well be feasable ?

August 27, 2009
8:19 pm
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Matt
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/ohmy.gif" style="vertical-align:middle" emoid=":o" border="0" alt="ohmy.gif" /> Good grief Andy I bet they were a sight to see. Do meghalayensis also grow so large?

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August 28, 2009
5:28 am
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retro_gk
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The biggest dangila I've had was just about 4" TL (3 years in my tank). I've got some year old 3" TL fish now, let's see how large they get.

Largest meghalayensis I've had was 2" TL, perhaps a shade larger. I haven't had one live past the 2 year mark yet, so maybe they get larger.

I've collected a few Devario malabaricus that were 6"+ (longer than the palm of my hand). I don't think too many specimens get to that size, though.

August 28, 2009
12:09 pm
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Matt
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Thanks Rahul. /thumbs_up.gif" style="vertical-align:middle" emoid=":thumbsup:" border="0" alt="thumbs_up.gif" /> Does dangila occur in the Ganges basin by the way? The only recent records I can find correspond to the Brahmaputra or Myanmarese (is that a word?) drainages. I know the types came from the Ganges but if I understand correctly they've all been lost.

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August 28, 2009
12:34 pm
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David Marshall
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Hey

The types must have been in the care of Andy's stewardess? ha ha ha. /laugh.gif" style="vertical-align:middle" emoid="Laugh" border="0" alt="laugh.gif" />

Dunc I know you were only showing shock about the method.

Regards David

August 31, 2009
10:26 pm
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Matt
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Bump the dangila-in-the-Ganges question. /tongue.gif" style="vertical-align:middle" emoid=":p" border="0" alt="tongue.gif" />

Also opinions on the gender of this D. erythromicron would be much appreciated. At first I was sure it's a male but now I'm doubting myself.

Attached files

[Image Can Not Be Found]

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September 1, 2009
10:15 am
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retro_gk
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The dangila types came from the Ganges?

The fish in the hobby today are collected in Bengal and parts east, but there have been reports of this species from Nepal which, if true, would make its presence in the Ganges quite likely.

September 1, 2009
11:26 am
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Matt
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First record is Hamilton 1822, "An account of the fishes found in the river Ganges and its branches". The locality given is "Mountain streams of Mongher, Behar (Bihar), India" which I took to mean Munger district. /unsure.gif" style="vertical-align:middle" emoid=":unsure:" border="0" alt="unsure.gif" />

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September 1, 2009
5:33 pm
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retro_gk
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I wonder where the line about the type locality came from. The text in Hamilton reads "I found the Dangila among the rocks and stones which compose the bottom of several clear mountain streams, south from Mungger."

You are correct in assuming the locality to refer to Munger district, but as modern day Bihar, Jharkhand and Orissa were all part of Bengal in Hamilton's day, Munger being an important military outpost back then, he could have covered quite a bit of real estate in the area "south from Mungger".

However, anything south of Munger would be a part of the Ganges drainage.

September 1, 2009
7:11 pm
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Matt
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Thanks for that Rahul, very interesting indeed. /thumbs_up.gif" style="vertical-align:middle" emoid=":thumbsup:" border="0" alt="thumbs_up.gif" /> Seems the types were designated later by Bleeker (1863). Does Hamilton mention whether he preserved any?

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September 2, 2009
4:51 am
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retro_gk
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Hamilton does not mention anything about specimens. I don't think any of his type material exists. Very frustrating, as he described a lot of fish from that region /sad.gif" style="vertical-align:middle" emoid=":(" border="0" alt="sad.gif" />

October 21, 2009
6:38 pm
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Matt
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That's bl**dy annoying yep! We need good quality pics of feegradei, kerri, nigrofasciatus and roseus if anyone can help por favor?

Also has anyone seen a live specimen of muongthanhensis?

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