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Post  justinr on Wed 06 Nov 2013, 19:15

hello,
I have just purchased some of these to add to my breeding stock (which includes the one survivour of the "mosquito coppers")
can anythem please?
cheers
 
Justin
male/female delema... Koi310male/female delema... Koi41063748]male/female delema... Koi111[/url]male/female delema... Koi610male/female delema... Koi810

justinr

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Post  Pterophyllum on Wed 06 Nov 2013, 21:16

Great colour on those Justin,
but size wise they look too small to sex with any confidence.
Patience is a virtue!

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Post  justinr on Thu 07 Nov 2013, 08:52

a virtue I have not yet devloped!
I am pleased with their colour. 2 of them in particular have 1/2 to 3/4 orange coverage.
Would I expect the orange to fade with age do you think?

Also I posted a thread a few months ago about the "mosquito copper" angelfish from rare aquatics. unfortunatley 3 out of 4 have now died (the only angelfish I have lost all year) and the remaining one looks exactly like a sunset blush. I have tried to speak with rare aquatics but they refuse to return my calls....

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Post  Pterophyllum on Thu 07 Nov 2013, 13:11

The way koi develop as they grow seems to vary from fish to fish, however, to take this photo as an example:-
male/female delema... Koi111
There are IMO three different areas of red/oragne/yellow colouration which are likely to develop differently....

Firstly there's the strong orange colouration around the head and face, that's likely to remain, I would expect it to contract in distribution slightly, but the colour to remain strong and probably intensify.

Next there are the lighter patches of orange touching onto the route of the tail & the anal fin but also the middle of the body. Again IMO, these are likely to fade and mostly disappear, but some slight trace of them should remain.

Finally, there's the red colouration running along the front edge of the dorsal and on to the body by the black spot at the front of the dorsal, I'd expect that this would intensify as the fish matures.

One day, when I have more time, I'll try to sort out some developmental progression photos, but for the moment compare these taken at just under 3 months old:-

male/female delema... <a href=male/female delema... Img_4010" />
male/female delema... <a href=male/female delema... Img_4011" />

with these of the same fish at about 18 months old (not the best photos but they give a clear idea of the colour changes)


male/female delema... <a href=male/female delema... Img_9210" />

[img]male/female delema... Img_9211[/img]

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Post  justinr on Thu 07 Nov 2013, 15:15

I really appreciate you taking the time out to explain that to me.

I am just about to purchase a my first few breeding/growing on tanks.
do you have any recommendations re the size that I need? space is limited..

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Post  Pterophyllum on Thu 07 Nov 2013, 16:41

I use 2' x 1' x 15" high tanks as breeding tanks, If I was starting again, I'd go with something slightly larger 2' x 15" x 18" tall. For growing on, the bigger the tank, the more fish you can grow. I'd suggest a minimum size of about 100 litres. It's probably better to have 3, 100 litre tanks rather than one 300 litre one. You can always split a batch into more than one tank, and when you do, you can grade them on size, variety etc. It's much harder to grow fish on when you've had to mix them with larger siblings, or larger fish from a different batch. What's more, with more tanks it's easier to keep track of which fish came from which parents!

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