its not that they are hard to feed...its I never had any luck getting them off live crickets. Which isn't a bad thing by any means, I just didn't have the space for a cricket breeding center along with my tanks at the time. They are awesome little fish, but make sure your lids are on good! They can literally sail out of a tank lol, found one of mine crispy dry about 9 feet away from the 150 he was in.I would love one and they always have them at my LFS but they told me their hard to feed
However, dropping crickets in the water is awesome because they zero in immediately and attack. Basically a mini arowana lol.