Agreed,all orinos I have had have been practically instant pellet eaters including this latest one that I got from Wes.If you are having troubles training them I would discontinue any feeders if that is what you are giving them and start them on blood worms and small cuts of shrimp and fish....then you can try one of the training methods that has been shared and posted about.In my experience, Orinos are pretty easy to train. I've had a really hard time training Kelberis. Orinos ger hungry fairly quickly. It really helps if they have tankmate cichlas who eat off-live.
Just be patient, they will eat eventually.