We bought cichlid pellet food today and the first time we fed them they seemed to like it fine. But later this evening, something weird happened. the pellets seemed to disappear immediately, although we didn't see any of them eat them. In fact we saw the fish swim right past the few that remained. Then all of a sudden one of the fish spit out several ( a dozen maybe?). We saw one of the other fish grab one and then spit it out. We figured that maybe they didn't like them and then gave them a very small pinch of regular flakes and they really went for them. What's going on with the pellets? and why did the one little guy grab so many and then spit them out? This was not a cheap can of food. Any ideas?