Ok i have to say a few things about this subject. As we stocked my aunts pond with Hybrid Bluegills. These are a few facts that happened in a small 1/4 acre pond. We were told that they would not reproduce for atleast 2 years. Yes mother nature finds a way when their are no females in a group to revert a few back to breeding fish to countinue the species. Well now after 3/4 of a year we had breeding fish and well we were over run with baby gills. So makesure you have space as they tend to overpopulate once they get going. Hybrid's are easy going given enough food. Pellets are what they are designed to feed on. They do gain considerable size pretty quick with plenty of feed and enough room to grow. Thing to consider with Hybrid Bluegills are do you want alot or quality fish. Remember that a small fish can only grow as big as space allows then growth tapers off. Granted this is from my experience and others depending on conditions will vary.