alexyay Posted January 17, 2014 Report Share Posted January 17, 2014 Say, for example, you have a pond of minnows or guppies etc - how do you avoid constant inbreeding (for example, guppies when their spines start to bend) - do you constantly reintroduce new fish or do you just let them keep at it? Is it unacceptable to sell them at a certain point (so many generations down, but no physical defects)? Also, has anyone ever kept any killies at outdoor temps? Quote Link to comment Share on other sites More sharing options...
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