My baby jardini never touched pellets or food sticks. It wanted blood worms only. Would Spit out anything that wasn't a bloodworm as soon as it put it in its mouth,. What's funny is even after fasting it for a week, there was still no response. Then for a short period of 3 days when it shared tanks with my black arowana, it watched my black arowana take broken arowana sticks and then it just started eating them. I don't know if it just got around from all the hunger or if it watched and learned. Now it chews on it, spits out softer pieces...rinse repeat until it finishes all of it.