What is with unwanted shrimps? Especially hybrids and low grades

May we introduce to you? Shrimp Art hired a new staff member!
This is Mailo the perch and he is full responsible for all culls now!
He works fine, he is a really good hunter and he helped very well to keep the quality of lines high as possible.

We believe in philosophy that serious breeder shouldn’t spread weaker genes arround.

*Add: I posted this in 3 Facebook groups to sensibilize the growing szene for the problems of “selling culls” especially of hybrids. I got some questions fom ppl and I want show my answers here too, because an origin post seems removed by group-admin.

“Mostly those are males with poor color and pattern. Then shrimps of newer crosses which traits or results are unwanted and of course no shrimp with defects should be introduced again into breeding cycle. Also there are several phenotypes and visible characteristics I don’t consider worthy to breed high quality pattern and colors with.”

“It’s really hard to sit back and see how the things going worse in the last years. Tons of bad genes from “crossbreeding” are spread around and there is only one reason to do so. An that calls fast money.

New breeders don’t realize that they never will be able to breed any nice from hybrids in more than 98% of all cases. Especially former breeder let culls mix several generation without aim/ selecting and most worse if it is more than 3 different kind of shrimps involved. There is almost zero chance to control the developing or stable phenotypes.

Selling those culls or hybrids to newbies who don’t know what they do is like cheating and feeding a false dream. It leads into a downward spiral for this wonderful hobby with producing a lot of gene trash and disappointment when the buyer aware after some time. ”

6 Responses

  1. Ali Zainal A
    Ali Zainal A at |

    You are doing good just like as Spartans did at ancient time, only the best and only the chosen. Keep Your good works, in My country, Indonesia, very lots of very low grades or maybe “culls” of fancy tiger sold out, Please keep Your great method, Monica, Thank You very much

    Reply
  2. ineke gee
    ineke gee at |

    Hi Mo ,
    Where I have my ponds birds can’t really get to them .i live a long way from water so it would be highly unlikely that if a bird did somehow mange to get to my shrimp they would end up in a water way. the ponds are densly planted with both moss and floating plants. I think they are safe. I have tried giving away just male culls or young shrimp to beginners but that was in the beginning- I always told people they shouldn’t be used in breeding programs but after seeing some offered for sale I stopped giving them away. i would have no issue using fish to keep my numbers under control but as we travel extensively fish are too hard to keep healthy for several months without someone looking after them. The shrimp thrive with fortnightly feeds and water topups as I always have leaves -mulbery and IAL – in the tanks but fish would need more care. so far this system is working well for me but may not be feasable elsewhere in the world.:)

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  3. Ineke
    Ineke at |

    I agree there needs to be something done about the degradation of shrimp genetics that is happening now. So many low grade shrimp being offered for sale. People don’t realise how many rejects we get in our hybrid breeding programs and knowing what to do with them can become a problem. I personally can’t kill my shrimp and don’t keep fish to feed them to although if the fish is big and kills cleanly I don’t actually have a problem with other people using them.
    I live in South Australia where we have hot summers and reasonably cold winters although not cold by European standards. My solution is a large outside pond where my culls go – both Neocaridina and Caridina hybrids. The ponds are under cover but have no filtration or heating. The water gets to 28-30 C in summer – the Neo pond has been up to 33C and about 5C in winter. My Neos have been outside for 3 years and now nearly all are pond born shrimp – they seem to be thriving. The Caridinas have survived their first summer and have so far survived this winter – now in the second and coldest month- I have even noticed a few babies. Since they seem to be surviving and even thriving I will be investing in a bigger deeper pond for them as at this stage I have several hundred in 2 150 litre ponds – 1 pond with Neos and 1 with Caridina. With the larger pond I will keep both varieties together and use a solar fountain to move the water in summer

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