Cichlids of Victoria

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 Post subject: male "Blue" obliquidens color
PostPosted: Fri Jul 05, 2013 9:36 am 
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I received a colony of Haplochromis sp. "blue obliquidens" more than a year ago. I kept them in a single species tank. They've bred for me several times and I've sold/given away fry. But I've also kept two colonies myself. I know that the males go through this red phase before (the dominant) male turns all blue. But in both colonies, the male retained his red coloring and never turned blue. Even the full adult male is still red on the upper half and blueish on the lower half. Has anyone else experienced this and is it normal?

Kevin

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 Post subject: Re: male "Blue" obliquidens color
PostPosted: Mon Jul 08, 2013 5:39 am 
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I have notice the red around the pictorial fin. The red on top is new to me. Have you sent any pictures to Marco?

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 Post subject: Re: male "Blue" obliquidens color
PostPosted: Sun Jul 14, 2013 6:12 am 
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Big Jim wrote:
I have notice the red around the pictorial fin. The red on top is new to me. Have you sent any pictures to Marco?


All the blue obliquidens I've ever had initially had red as juveniles. But as adults they've grown all blue. That is except the next generation of blue obliquidens where none of the males turned completely blue. See below.

Image
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Image

These are three different males from the same brood.

Kevin

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 Post subject: Re: male "Blue" obliquidens color
PostPosted: Sun Jul 14, 2013 8:45 am 
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OK I went out and took a really good look at my blue obliquidens this morning. My dominate male from the shipment has a light maroon color on top. It looks like it's covered by blue. Some of the fry I have from him has light maroon color on top with orange behind the pictorial fins. The color is much lighter than your males

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 Post subject: Re: male "Blue" obliquidens color
PostPosted: Sun Jul 14, 2013 4:51 pm 
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Feed may also play a role in the intensity of red coloration. Fish cannot synthesize carotenoid pigments. Diets with additional carotenoid pigments added (e.g. astaxanthin, canthaxanthin, 'naturose') can increase the intensity of red coloration in adult fish.


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 Post subject: Re: male "Blue" obliquidens color
PostPosted: Mon Jul 15, 2013 8:10 am 
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hi
this is not the usual coloration of the male blue obliquidens, normally it's all blue with red fins, I never witnessed such red on the upper part of the body on the fishes I kept several years ago nor in any fry i saw. This fish has been hybridised with a flameback or a ruby or a red back scraper but this is not the normal male color.
xris :)


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 Post subject: Re: male "Blue" obliquidens color
PostPosted: Mon Jul 15, 2013 9:17 am 
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Jason S wrote:
Feed may also play a role in the intensity of red coloration.

In my breeding group all the males showed some slight red as juveniles but they all turned 100% blue on the body and were fed the same diet as their offspring.


xristof wrote:
hi
This fish has been hybridised with a flameback or a ruby or a red back scraper but this is not the normal male color.
xris :)

Well, obviously I was suspicious or I wouldn't have made the original post. It's just a bit baffling since the breeding group looks so good and the offspring have always been in a single species tank.

I only distributed the fry to one guy in New York and I let him know the situation.

Kevin

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 Post subject: Re: male "Blue" obliquidens color
PostPosted: Mon Jul 15, 2013 3:09 pm 
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Damn, Hope that is not the case, that is not good. Hoping for the best here Kevin. Please keep us posted.


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 Post subject: Re: male "Blue" obliquidens color
PostPosted: Mon Jul 15, 2013 8:18 pm 
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Where's the colony originally ?


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