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Old 22-01-2013, 05:09 PM   #1
weby
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Default Question on Blue Grass

I have purchased a pair of Blue Grass sometime ago and have a batch of fries from them. I noticed there are some fries that have some sort of red colour on their caudal and body. My question is whether this is normal for blue grass to throw out some red grass despite both parents are Blue Grass?
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Old 22-01-2013, 06:04 PM   #2
mnoor
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You can expect the fry to be blue, red and the asian blau. Its like buying 3 in 1.
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Old 22-01-2013, 06:40 PM   #3
5050
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Ideally you will get 50% of blue male and 50% of red male. You might get a small percentage of blau.

For most show guppy breeders, most of the time they cull the red male away (of course it could serve as a tool fish in certain aspect).

If you are able to get a blau fish to mate with a red fish, you might be able to get 100% F1 blue male. That is what the commercial breeders will do for selling purpose. But it is difficult to see the performance of blau, so you run a risk of deterioration.

So this is the price to play grass, you have around 50% male to select.

Cheers

Chiu

Quote:
Originally Posted by weby View Post
I have purchased a pair of Blue Grass sometime ago and have a batch of fries from them. I noticed there are some fries that have some sort of red colour on their caudal and body. My question is whether this is normal for blue grass to throw out some red grass despite both parents are Blue Grass?
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Old 22-01-2013, 07:01 PM   #4
weby
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Originally Posted by mnoor View Post
You can expect the fry to be blue, red and the asian blau. Its like buying 3 in 1.
So asian blau is it a mixture of red and blue?
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Old 22-01-2013, 07:04 PM   #5
weby
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Quote:
Originally Posted by 5050 View Post
Ideally you will get 50% of blue male and 50% of red male. You might get a small percentage of blau.

For most show guppy breeders, most of the time they cull the red male away (of course it could serve as a tool fish in certain aspect).

If you are able to get a blau fish to mate with a red fish, you might be able to get 100% F1 blue male. That is what the commercial breeders will do for selling purpose. But it is difficult to see the performance of blau, so you run a risk of deterioration.

So this is the price to play grass, you have around 50% male to select.

Cheers

Chiu
Is this not possible to stabilize to all blue grass if I do selection breeding?
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Old 22-01-2013, 07:53 PM   #6
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Quote:
Originally Posted by weby View Post
So asian blau is it a mixture of red and blue?
No. Blau is a tool fish in creating Blue grass.
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Old 22-01-2013, 08:02 PM   #7
basicsimple
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Originally Posted by weby View Post
Is this not possible to stabilize to all blue grass if I do selection breeding?
Again no. If u use blue grass with blau the fish later will become no spot. Yes u will get a lot of blue but the result will be worse.

There are some exception though, from my experience, I use to get a line of fish that produce only blue grass and blau, but the interesting part is the female i use is not blau. I ask the breeder that sell me the fish and he cannot answer, coz he get blue, red and blau.
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Old 22-01-2013, 08:17 PM   #8
weby
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Originally Posted by basicsimple View Post
No. Blau is a tool fish in creating Blue grass.
How do I identify a blau male or blau female from my fries?
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Old 22-01-2013, 08:25 PM   #9
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Quote:
Originally Posted by weby View Post
How do I identify a blau male or blau female from my fries?
U open the light, the Blau guppies are grey color. No black spot on tail and no Nike. The female is grey color and no spot on dorsal.
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Old 22-01-2013, 08:52 PM   #10
kaner
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The blau guppies are the ones I cull first because it can be easily spotted even when they are at fry age.
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