But apparently atf + dorado works because I have seen recent pics from someone having a numer of these in the same tank. I assume odoe and atf are both silvery but the dorado is more golden. By the same token, I think a atf + brycon will work?
Dorados and Brycons are hit or miss with ATF. Sometimes they beat up the tigers, sometimes they dont. They are not sympatric with ATF however so there's no instinct for them to attack each other as with ATF and odoes. I believe that Dorados, Brycons and ATF all view one another as conspecifics. Their behavior would seem to support this idea.