It's temperament is about average for an earth eater - closely related to the red-hump earth eater geo. steindachneri, but larger and significantly more mellow. Really the only aggression you should expect is with others of the same species. Ideal for a big south American tank, even with corys and bigger tetras. If you want multiples of this species, best to get a group of six or more, and as they grow up, reduce your group to a single male and any females you got... They are harem spawners.
There are 14 inchlings at the store ($25 ea)... I have about sixty more I'm holding onto... And that's about it for the trade at the moment... This is a Very rare fish! It's a real duck of a fish. Try m out.
-Sam