Killie Fish

Angela has been a big help in my rainbow fish adventure, so I hope someone just as knowledgeable will post a few hints about Killie fish. I saw these orange beauties on Aquabid but am not sure of their Latin names. I'll ask the seller.

Well, I did. It's aphyosemion australe or something like that. Normally, I don't care use to Latin names, but sometimes that's the only way to identify the less common aquarium fish.