Nandus Nandus, they have a very similar build to datnoids but only reach approx 7" maximum. Very similar personality, perhaps even more shy when they're smaller. Similar pattern but with a more blotched stripe-like pattern than a datnoid.Also are there any alternatives to datnoids, I’m looking for a large predatory fish with a similar body shape and has the same personality as a datnoid but doesn’t get as big