Japanese rice fish (Oryzias latipes)

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Pure wild forms:
1) https://medakainsideinternational.com/2020/07/23/portrat-oryzias-latipes-aichi-ken/
2) https://medakainsideinternational.com/2020/08/01/portrait-oryzias-sakaizumii/

Breed forms:
1) https://medakaproject.com/category/medaka-zuchtformen-2/tricolor/
2) https://medakaproject.com/2020/06/13/medaka-black-lame/
3) https://medakaproject.com/2016/10/1...-aus-asien-medaka-red-king-weiterentwicklung/
4) https://medakaproject.com/2017/11/05/neuvorstellung-in-hongkong-2017-medaka-aurora-lame/
5) https://medakaproject.com/2016/01/29/medaka-noriyuki-stern-auroral-japan-zuechtung/

Overwintering:
https://www.medakanoouchi.com/howto/overwintering.html.en
https://aquariumforum-ost.de/forum/...-aichi-ken-wildform-im-gartenteich-in-berlin/

 

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Medaka 'tricolor' and 'Bicolor'

Medaka 'Diamond'

 

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Winter:

 

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In Japan, the pure wild form is beginning to be threatened by technical development, agricultural modernization and by being pushed out by the highly aggressive invasive Gambusia, which attacks adults, eats young Oryzias latipes and, being more voracious, reduces the amount of food consumed by Oryzias latipes. It is therefore good to breed pure wild forms in addition to domesticated ornamental forms and thus contribute to their preservation.

 

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I found two more pure wild populations bred among aquarists.
1) https://medakaproject.com/2020/05/1...-ryukyu-illand-oder-minami-medaka-10-05-2020/
2) https://medakaproject.com/2016/10/12/oryzias-latipes-magome-river-hamamatsu-japan-wildform/

 

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Basics of color inheritance in Oryzias latipes:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1200522/pdf/554.pdf

 

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Super informative, always helpful. Mailing eggs, how to feed, how to hibernate, breeding new colors... https://www.facebook.com/groups/medaka.eu/