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10 years of breeding

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Approximately  10 years ago I got for my husband two rather nice blue male guppy's with but quite pale and females with faint blue tails but no body colour. Only a couple of times in the early breeding of the blues did we add the odd other female we came across in local pet shops with good blue and rarely any more males. But now keeping in mind that the breeding has only been planned in the sense that any undesirable fish have been removed and the desired ones are all together in one large tank breeding with who ever they want, I think the fish the tank is producing are stunning.

Rather interestingly the first undesired colour to usually turn up in the offspring is blue/ black body with red tail closely followed by what I call snake skin (because of their swirly patterns over their body) and are usually a greeny yellow or faint (I call ghost) blue. Then there are the purple and pink ones that also turn up.

Sadly up here when people see the guppies we have they want them but expect them to be cheap ($1 or less) or free afterall "they are only guppies and I can catch them in the creek", so we have two very colourful and active tanks. One with blue guppies and one with a rainbow of colours.






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Some of the culls from the breeding program.

The little pink looking male actually has when zoomed in on his tail what looks like 3 peacock feather tail eyes. Or perhaps little opals.

Most of the males in these pictures are only still young, when they mature a bit more they will have tails like the old blue boy in the last pic.









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    • Zoidburg
      They are both, without a doubt, Caridina species.  The last one is a sort of "pinocchio" shrimp. The most common are generally the red nose followed by the yellow nosed(?). The short nosed, which I'm sure this one is, is far less common. I've been given 3-4 different species of what they might be, but have ruled out one due to it's life cycle being like an amanos. The others, I have yet to see a positive ID that matches... so still trying to figure it out...
    • pastu
      Going back to culling , i would like to point out that removing too large a proportion of the colony you wish to improve , gets  your there faster , but you reach a point of no further progress for lack of genetic variability.  I tend to cull the worst 20% of my colony once a month and observe a slow steady improvement. Hopefully my colony will continue to improve Long into the future. I have learnt about population genetics when i was interested in breeding fancy fowl, and kept up to date now that i am interested in shrimps and horses. The laws are the same.the greater the breeding population and the lower the percentage that is removed from reproducción, the healtier and more prolific will remain and the further the progress in recombining desirable caracters. A severe rate of culling makes your population very homogenous early on and improvement stops
    • Wolf92s
      I'm still new to the hobby but they kinda look like other post (could be wrong, but he called them glass shrimp)

      For the last pic it looks like a pinocchio shrimp (Caridina gracilirostris).

      Maybe someone will correct me. Sorry couldn't help anymore.

      Sent from my 2PZC5 using Tapatalk

    • jayc
      Newer A/C units now have auto on/off features. Maybe it's time for an upgrade @Zoidburg 😁 The things we do for our shrimp!
    • jayc
      @Zoidburg, happy to do that for you. Moved.