First off I know this is an old topic started almost 10 yrs ago but hey I am into recycling. I have been reading a lot of old topics lately. I have caught and ate BH and I like em. Some good discussion about them and weather or not to have them in a pond. I have put them in mine and others have also but I have yet to catch one. I guess I have some hungry LMB so they keep them in check. I did see a school of fry last summer so who knows. I hope to catch some. The ones I caught in bayou behind the house I put in an old washing machine and changed the water a couple times over a couple days. The water would turn dirty so I knew they were getting cleaned out. This is what CC farmers do before they clean their fish. Usually 24 hrs with water running through the tank.